Common Weakness Enumeration

CWE-119

Discouraged

Improper Restriction of Operations within the Bounds of a Memory Buffer

Abstraction: Class · Status: Stable

API response cwe.mitre.org

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

17493 vulnerabilities reference this CWE, most recent first.

CVE-2026-12192 (GCVE-0-2026-12192)

Vulnerability from cvelistv5 – Published: 2026-06-14 23:15 – Updated: 2026-06-15 19:25
VLAI
Title
GALAYOU Y4 Web Server buffer overflow
Summary
A vulnerability was determined in GALAYOU Y4 1.0.0. Impacted is an unknown function of the component Web Server. This manipulation causes buffer overflow. The attack is only possible within the local network. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
8.7 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.8 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
8.8 (High)
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/370838 vdb-entry
https://vuldb.com/vuln/370838/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-12192 third-party-advisory
https://vuldb.com/submit/825801 third-party-advisory
Impacted products
Vendor Product Version
GALAYOU Y4 Affected: 1.0.0
    cpe:2.3:a:galayou:y4:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
0xd0 (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-12174 (GCVE-0-2026-12174)

Vulnerability from cvelistv5 – Published: 2026-06-13 20:15 – Updated: 2026-06-15 17:02
VLAI
Title
D-Link DCS-935L HTTP rhea snprintf format string
Summary
A security vulnerability has been detected in D-Link DCS-935L 1.10.01. This issue affects the function snprintf of the file /web/cgi-bin/greece/rhea of the component HTTP Handler. Such manipulation of the argument data leads to format string. The attack may be launched remotely. The exploit has been disclosed publicly and may be used.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
8.8 (High)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
D-Link DCS-935L Affected: 1.10.01
    cpe:2.3:h:d-link:dcs-935l:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
Simplicity (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-11623 (GCVE-0-2026-11623)

Vulnerability from cvelistv5 – Published: 2026-06-09 03:15 – Updated: 2026-06-23 04:49 X_Open Source
VLAI
Title
tmux image.c image_free use after free
Summary
A security vulnerability has been detected in tmux up to 3.6a. Affected is the function image_free of the file image.c. Such manipulation leads to use after free. Local access is required to approach this attack. This attack is characterized by high complexity. The exploitability is told to be difficult. The exploit has been disclosed publicly and may be used. Upgrading to version 3.7-rc is able to address this issue. The name of the patch is fc6d94a9f8a593bd8b7031650802084385d4ee03. The affected component should be upgraded.
Severity
2 (Low)
CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
4.5 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
4.5 (Medium)
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a tmux Affected: 3.6a
Unaffected: 3.7-rc
    cpe:2.3:a:tmux:tmux:*:*:*:*:*:*:*:*
Credits
XlabAI (VulDB User) XlabAI (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-11557 (GCVE-0-2026-11557)

Vulnerability from cvelistv5 – Published: 2026-06-08 18:15 – Updated: 2026-06-08 19:52
VLAI
Title
Tenda F451 Web Management Natlimit fromNatlimit stack-based overflow
Summary
A weakness has been identified in Tenda F451 1.0.0.7/1.0.0.9. The affected element is the function fromNatlimit of the file /goform/Natlimit of the component Web Management Interface. Executing a manipulation of the argument page can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
8.8 (High)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Tenda F451 Affected: 1.0.0.7
Affected: 1.0.0.9
    cpe:2.3:o:tenda:f451_firmware:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
hacker128 (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-11553 (GCVE-0-2026-11553)

Vulnerability from cvelistv5 – Published: 2026-06-08 17:15 – Updated: 2026-06-08 18:49
VLAI
Title
Tenda HG7HG9/HG10 formPPPEdit stack-based overflow
Summary
A vulnerability was found in Tenda HG7HG9 and HG10 300001138_en_xpon. This affects the function formPPPEdit of the file /boaform/formPPPEdit. The manipulation of the argument encodename results in stack-based buffer overflow. The attack can be launched remotely. The exploit has been made public and could be used.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
8.8 (High)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Tenda HG7HG9 Affected: 300001138_en_xpon
    cpe:2.3:h:tenda:hg7hg9:*:*:*:*:*:*:*:*
 Create a notification for this product.
Tenda HG10 Affected: 300001138_en_xpon
    cpe:2.3:h:tenda:hg10:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
zhihua xie (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-11528 (GCVE-0-2026-11528)

Vulnerability from cvelistv5 – Published: 2026-06-08 15:15 – Updated: 2026-06-09 14:35
VLAI
Title
Tenda AC18 Web Management getRebootStatus sub_45304 stack-based overflow
Summary
A vulnerability was found in Tenda AC18 15.03.05.05. The affected element is the function sub_45304 of the file /goform/getRebootStatus of the component Web Management Interface. The manipulation of the argument callback results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been made public and could be used.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
8.8 (High)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Tenda AC18 Affected: 15.03.05.05
    cpe:2.3:o:tenda:ac18_firmware:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
hacker128 (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-11524 (GCVE-0-2026-11524)

Vulnerability from cvelistv5 – Published: 2026-06-08 15:00 – Updated: 2026-06-09 15:26
VLAI
Title
Tenda W20E Web Management modifyWifiFilterRules stack-based overflow
Summary
A vulnerability has been found in Tenda W20E 15.11.0.6. Impacted is the function modifyWifiFilterRules of the file /goform/modifyWifiFilterRules of the component Web Management Interface. The manipulation of the argument wifiFilterListRemark leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
8.8 (High)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Tenda W20E Affected: 15.11.0.6
    cpe:2.3:o:tenda:w20e_firmware:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
hacker128 (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-11523 (GCVE-0-2026-11523)

Vulnerability from cvelistv5 – Published: 2026-06-08 14:45 – Updated: 2026-06-08 16:36
VLAI
Title
Tenda W20E Web Management PortalAuth formPortalAuth stack-based overflow
Summary
A flaw has been found in Tenda W20E 15.11.0.6. This issue affects the function formPortalAuth of the file /goform/PortalAuth of the component Web Management Interface. Executing a manipulation of the argument gotoUrl can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been published and may be used.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
8.8 (High)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Tenda W20E Affected: 15.11.0.6
    cpe:2.3:o:tenda:w20e_firmware:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
hacker128 (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-11522 (GCVE-0-2026-11522)

Vulnerability from cvelistv5 – Published: 2026-06-08 14:30 – Updated: 2026-06-08 15:52
VLAI
Title
Tenda W20E setPortMirror formSetPortMirror stack-based overflow
Summary
A vulnerability was detected in Tenda W20E 15.11.0.6. This vulnerability affects the function formSetPortMirror of the file /goform/setPortMirror. Performing a manipulation of the argument portMirrorMirroredPorts results in stack-based buffer overflow. The attack can be initiated remotely. The exploit is now public and may be used.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
8.8 (High)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Tenda W20E Affected: 15.11.0.6
    cpe:2.3:o:tenda:w20e_firmware:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
hacker128 (VulDB User)
Show details on NVD website
To clipboard 

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          "url": "https://github.com/Robots10/IoT_vlu/blob/main/reports/Tenda/formSetPortMirror/portMirrorMirroredPorts.md"
        },
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          "url": "https://www.tenda.com.cn/"
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CVE-2026-11517 (GCVE-0-2026-11517)

Vulnerability from cvelistv5 – Published: 2026-06-08 13:15 – Updated: 2026-06-09 15:07
VLAI
Title
UTT HiPER 2610G formConfigDnsFilterGlobal strcpy buffer overflow
Summary
A vulnerability was determined in UTT HiPER 2610G up to 3.0.0-171107. This impacts the function strcpy of the file /goform/formConfigDnsFilterGlobal. Executing a manipulation of the argument GroupName can lead to buffer overflow. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
8.8 (High)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/369137 vdb-entrytechnical-description
https://vuldb.com/vuln/369137/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-11517 third-party-advisory
https://vuldb.com/submit/836278 third-party-advisory
https://github.com/HungryGoogle/log_attack/tree/m… exploit
Impacted products
Vendor Product Version
UTT HiPER 2610G Affected: 3.0.0-171107
    cpe:2.3:a:utt:hiper_2610g:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
liwenqing (VulDB User)
Show details on NVD website
To clipboard 

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Mitigation MIT-3
Requirements

Strategy: Language Selection

  • Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
  • For example, many languages that perform their own memory management, such as Java and Perl, are not subject to buffer overflows. Other languages, such as Ada and C#, typically provide overflow protection, but the protection can be disabled by the programmer.
  • Be wary that a language's interface to native code may still be subject to overflows, even if the language itself is theoretically safe.
Mitigation MIT-4.1
Architecture and Design

Strategy: Libraries or Frameworks

  • Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
  • Examples include the Safe C String Library (SafeStr) by Messier and Viega [REF-57], and the Strsafe.h library from Microsoft [REF-56]. These libraries provide safer versions of overflow-prone string-handling functions.
Mitigation MIT-10
Operation Build and Compilation

Strategy: Environment Hardening

  • Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking.
  • D3-SFCV (Stack Frame Canary Validation) from D3FEND [REF-1334] discusses canary-based detection in detail.
Mitigation MIT-9
Implementation
  • Consider adhering to the following rules when allocating and managing an application's memory:
  • Double check that the buffer is as large as specified.
  • When using functions that accept a number of bytes to copy, such as strncpy(), be aware that if the destination buffer size is equal to the source buffer size, it may not NULL-terminate the string.
  • Check buffer boundaries if accessing the buffer in a loop and make sure there is no danger of writing past the allocated space.
  • If necessary, truncate all input strings to a reasonable length before passing them to the copy and concatenation functions.
Mitigation MIT-11
Operation Build and Compilation

Strategy: Environment Hardening

  • Run or compile the software using features or extensions that randomly arrange the positions of a program's executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
  • Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as "rebasing" (for Windows) and "prelinking" (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
  • For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].
Mitigation MIT-12
Operation

Strategy: Environment Hardening

  • Use a CPU and operating system that offers Data Execution Protection (using hardware NX or XD bits) or the equivalent techniques that simulate this feature in software, such as PaX [REF-60] [REF-61]. These techniques ensure that any instruction executed is exclusively at a memory address that is part of the code segment.
  • For more information on these techniques see D3-PSEP (Process Segment Execution Prevention) from D3FEND [REF-1336].
Mitigation MIT-13
Implementation

Replace unbounded copy functions with analogous functions that support length arguments, such as strcpy with strncpy. Create these if they are not available.

CAPEC-10: Buffer Overflow via Environment Variables

This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the adversary finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.

CAPEC-100: Overflow Buffers

Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an adversary. As a consequence, an adversary is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the adversaries' choice.

CAPEC-123: Buffer Manipulation

An adversary manipulates an application's interaction with a buffer in an attempt to read or modify data they shouldn't have access to. Buffer attacks are distinguished in that it is the buffer space itself that is the target of the attack rather than any code responsible for interpreting the content of the buffer. In virtually all buffer attacks the content that is placed in the buffer is immaterial. Instead, most buffer attacks involve retrieving or providing more input than can be stored in the allocated buffer, resulting in the reading or overwriting of other unintended program memory.

CAPEC-14: Client-side Injection-induced Buffer Overflow

This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service. This hostile service is created to deliver the correct content to the client software. For example, if the client-side application is a browser, the service will host a webpage that the browser loads.

CAPEC-24: Filter Failure through Buffer Overflow

In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).

CAPEC-42: MIME Conversion

An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

CAPEC-44: Overflow Binary Resource File

An attack of this type exploits a buffer overflow vulnerability in the handling of binary resources. Binary resources may include music files like MP3, image files like JPEG files, and any other binary file. These attacks may pass unnoticed to the client machine through normal usage of files, such as a browser loading a seemingly innocent JPEG file. This can allow the adversary access to the execution stack and execute arbitrary code in the target process.

CAPEC-45: Buffer Overflow via Symbolic Links

This type of attack leverages the use of symbolic links to cause buffer overflows. An adversary can try to create or manipulate a symbolic link file such that its contents result in out of bounds data. When the target software processes the symbolic link file, it could potentially overflow internal buffers with insufficient bounds checking.

CAPEC-46: Overflow Variables and Tags

This type of attack leverages the use of tags or variables from a formatted configuration data to cause buffer overflow. The adversary crafts a malicious HTML page or configuration file that includes oversized strings, thus causing an overflow.

CAPEC-47: Buffer Overflow via Parameter Expansion

In this attack, the target software is given input that the adversary knows will be modified and expanded in size during processing. This attack relies on the target software failing to anticipate that the expanded data may exceed some internal limit, thereby creating a buffer overflow.

CAPEC-8: Buffer Overflow in an API Call

This attack targets libraries or shared code modules which are vulnerable to buffer overflow attacks. An adversary who has knowledge of known vulnerable libraries or shared code can easily target software that makes use of these libraries. All clients that make use of the code library thus become vulnerable by association. This has a very broad effect on security across a system, usually affecting more than one software process.

CAPEC-9: Buffer Overflow in Local Command-Line Utilities

This attack targets command-line utilities available in a number of shells. An adversary can leverage a vulnerability found in a command-line utility to escalate privilege to root.

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