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Common Weakness Enumeration

CWE-121

Allowed

Stack-based Buffer Overflow

Abstraction: Variant · Status: Draft

A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

5525 vulnerabilities reference this CWE, most recent first.

CVE-2026-13517 (GCVE-0-2026-13517)

Vulnerability from cvelistv5 – Published: 2026-06-29 00:00 – Updated: 2026-06-29 12:59
VLAI
Title
Tenda JD12L WifiBasicSet formWifiBasicSet stack-based overflow
Summary
A flaw has been found in Tenda JD12L 16.03.53.23. The impacted element is the function formWifiBasicSet of the file /goform/WifiBasicSet. Executing a manipulation of the argument security_5g can lead to stack-based buffer overflow. The attack may be launched remotely. The exploit has been published and may be used.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-29 12:59 UTC
CWE
References
URL Tags
https://vuldb.com/vuln/374525 vdb-entrytechnical-description
https://vuldb.com/vuln/374525/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-13517 third-party-advisory
https://vuldb.com/submit/838888 third-party-advisory
https://github.com/cve-a/Vampirensa/issues/3 exploitissue-tracking
https://www.tenda.com.cn/ product
Impacted products
Vendor Product Version
Tenda JD12L Affected: 16.03.53.23
    cpe:2.3:h:tenda:jd12l:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-13516 (GCVE-0-2026-13516)

Vulnerability from cvelistv5 – Published: 2026-06-28 23:45 – Updated: 2026-06-29 13:42
VLAI
Title
Tenda JD12L WifiGuestSet fromSetWifiGusetBasic stack-based overflow
Summary
A vulnerability was detected in Tenda JD12L 16.03.53.23. The affected element is the function fromSetWifiGusetBasic of the file /goform/WifiGuestSet. Performing a manipulation of the argument shareSpeed results in stack-based buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-29 13:42 UTC
CWE
References
URL Tags
https://vuldb.com/vuln/374524 vdb-entrytechnical-description
https://vuldb.com/vuln/374524/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-13516 third-party-advisory
https://vuldb.com/submit/838887 third-party-advisory
https://github.com/cve-a/Vampirensa/issues/2 exploitissue-tracking
https://www.tenda.com.cn/ product
Impacted products
Vendor Product Version
Tenda JD12L Affected: 16.03.53.23
    cpe:2.3:h:tenda:jd12l:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-13515 (GCVE-0-2026-13515)

Vulnerability from cvelistv5 – Published: 2026-06-28 23:30 – Updated: 2026-06-29 14:53
VLAI
Title
Tenda JD12L SetPptpServerCfg formSetPPTPServer stack-based overflow
Summary
A security vulnerability has been detected in Tenda JD12L 16.03.53.23. Impacted is the function formSetPPTPServer of the file /goform/SetPptpServerCfg. Such manipulation of the argument startIp leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-29 14:13 UTC
CWE
References
URL Tags
https://vuldb.com/vuln/374523 vdb-entrytechnical-description
https://vuldb.com/vuln/374523/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-13515 third-party-advisory
https://vuldb.com/submit/838885 third-party-advisory
https://github.com/cve-a/Vampirensa/issues/1 exploitissue-tracking
https://www.tenda.com.cn/ product
Impacted products
Vendor Product Version
Tenda JD12L Affected: 16.03.53.23
    cpe:2.3:h:tenda:jd12l:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-13361 (GCVE-0-2026-13361)

Vulnerability from cvelistv5 – Published: 2026-08-12 19:43 – Updated: 2026-08-13 13:19
VLAI
Title
IBM Informix Server Vulnerability in SQL Interface Handler Could Allow Remote Code Execution
Summary
IBM Informix oninit sq_sgkprepare RCE via unchecked SQL Interface length field.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 03:55 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
References
URL Tags
https://www.ibm.com/support/pages/node/7283143 vendor-advisorypatch
Impacted products
Vendor Product Version
IBM Informix Dynamic Server Affected: 14.10
Affected: 12.10.x
Affected: 15.0
    cpe:2.3:a:ibm:informix_dynamic_server:14.10:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:informix_dynamic_server:14.10.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:informix_dynamic_server:12.10.x:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:informix_dynamic_server:15.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:informix_dynamic_server:15.0.0:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-13309 (GCVE-0-2026-13309)

Vulnerability from cvelistv5 – Published: 2026-07-29 20:14 – Updated: 2026-07-30 15:18
VLAI
Title
Autel MaxiCharger AC Elite Home NFC Stack-based Buffer Overflow Arbitrary Code Execution Vulnerability
Summary
Autel MaxiCharger AC Elite Home NFC Stack-based Buffer Overflow Arbitrary Code Execution Vulnerability. This vulnerability allows physically present attackers to execute arbitrary code on affected installations of Autel MaxiCharger AC Elite Home EV chargers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of card responses via the NFC interface. A crafted card response can trigger an overflow of a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-29044.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-30 14:18 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
References
Impacted products
Date Public
2026-07-15 21:34
Show details on NVD website

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CVE-2026-13086 (GCVE-0-2026-13086)

Vulnerability from cvelistv5 – Published: 2026-08-27 23:24 – Updated: 2026-09-03 20:49
VLAI
Title
Fireware OS Stack-Based Buffer Overflow in Mobile Security epm Endpoint
Summary
A stack-based buffer overflow in the epm (Endpoint Protection Manager) service used by the deprecated Mobile Security feature in WatchGuard Fireware OS allows an unauthenticated remote attacker to execute arbitrary code.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-28 00:00 UTC
References
Impacted products
Vendor Product Version
WatchGuard Fireware OS Affected: 2025.0 , < 2026.2.2 (custom)
Affected: 12.0 , < 12.12.2 (custom)
Affected: 2026.3 , < 2026.3.1 (custom)
Create a notification for this product.
WatchGuard Fireware OS Affected: 12.0 , < 12.5.20 (custom)
Create a notification for this product.
Date Public
2026-08-27 23:24
Show details on NVD website

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CVE-2026-12935 (GCVE-0-2026-12935)

Vulnerability from cvelistv5 – Published: 2026-07-29 18:20 – Updated: 2026-07-30 03:55
VLAI
Title
Unauthenticated Remote Code Execution in TP-Link TL-WR940N RTSP Conntrack Feature
Summary
The TL-WR940N v6 router contains a vulnerability in its RTSP connection tracking module that can lead to a stack-based buffer overflow. The issue occurs when a LAN client initiates a connection to a malicious RTSP server controlled by an attacker. A specially crafted RTSP message may trigger improper memory handling within the kernel module Successful exploitation of this vulnerability may result in a denial-of-service (DoS) condition or allow remote code execution (RCE), potentially leading to full compromise of the device. This vulnerability can be exploited by an unauthenticated attacker under the device's default configuration.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-29 00:00 UTC
CWE
  • CWE-121 - Stack-based buffer overflow
Impacted products
Vendor Product Version
TP-Link Systems Inc. TL-WR940N v6 Affected: 0 , < (US)_V6_260528 (custom)
Affected: 0 , < (JP)_V6_260527 (custom)
Affected: 0 , < (EU)_V6_260528 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-12848 (GCVE-0-2026-12848)

Vulnerability from cvelistv5 – Published: 2026-06-24 03:34 – Updated: 2026-06-24 12:49
VLAI
Title
GeoVision GV-I/O Box DVRSearch buffer overflow vulnerabilities in CMD_IP_SET command
Summary
GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and RS-485. DVRSearch is a service running by default on the IOBox listening for UDP messages on port 10001. Any user on the network can send messages to this service and interact with it. Upon receiving a UDP message, the server reads at most 1460 bytes into a local buffer and a pointer to the buffer is stored in a global variable: #### DNS field stack overflow The following code is vulnerable to a stack overflow that is attacker-controlled: v8 = strlen(g_network_config->dns_addr); memcpy(&reply_buf[248], g_network_config->dns_addr, v8);
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-24 12:46 UTC
CWE
  • CWE-121 - Stack-based buffer overflow
Assigner
References
Impacted products
Vendor Product Version
GeoVision Inc. GV-I/O Box 4E Affected: V2.09
Unaffected: v2.12
    cpe:2.3:a:geovision_inc.:gv-i_o_box_4e:v2.09:*:linux:*:*:*:*:*
Create a notification for this product.
Date Public
2026-06-17 03:10
Show details on NVD website

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CVE-2026-12847 (GCVE-0-2026-12847)

Vulnerability from cvelistv5 – Published: 2026-06-24 03:34 – Updated: 2026-06-24 13:16
VLAI
Title
GeoVision GV-I/O Box DVRSearch buffer overflow vulnerabilities in CMD_IP_SET command
Summary
GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and RS-485. DVRSearch is a service running by default on the IOBox listening for UDP messages on port 10001. Any user on the network can send messages to this service and interact with it. Upon receiving a UDP message, the server reads at most 1460 bytes into a local buffer and a pointer to the buffer is stored in a global variable: #### Gateway field stack overflow The following code is vulnerable to a stack overflow that is attacker-controlled: v7 = strlen(g_network_config->gateway); memcpy(&reply_buf[216], g_network_config->gateway, v7);
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-24 13:16 UTC
CWE
  • CWE-121 - Stack-based buffer overflow
Assigner
References
Impacted products
Vendor Product Version
GeoVision Inc. GV-I/O Box 4E Affected: V2.09
Unaffected: v2.12
    cpe:2.3:a:geovision_inc.:gv-i_o_box_4e:v2.09:*:linux:*:*:*:*:*
Create a notification for this product.
Date Public
2026-06-17 03:10
Show details on NVD website

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CVE-2026-12846 (GCVE-0-2026-12846)

Vulnerability from cvelistv5 – Published: 2026-06-24 03:34 – Updated: 2026-06-24 12:55
VLAI
Title
GeoVision GV-I/O Box DVRSearch buffer overflow vulnerabilities in CMD_IP_SET command
Summary
GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and RS-485. DVRSearch is a service running by default on the IOBox listening for UDP messages on port 10001. Any user on the network can send messages to this service and interact with it. Upon receiving a UDP message, the server reads at most 1460 bytes into a local buffer and a pointer to the buffer is stored in a global variable: #### Net Mask field stack overflow The following code is vulnerable to a stack overflow that is attacker-controlled: v6 = strlen(g_network_config->net_mask); memcpy(&reply_buf[184], g_network_config->net_mask, v6);
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-24 12:55 UTC
CWE
  • CWE-121 - Stack-based buffer overflow
Assigner
References
Impacted products
Vendor Product Version
GeoVision Inc. GV-I/O Box 4E Affected: V2.09
Unaffected: v2.12
    cpe:2.3:a:geovision_inc.:gv-i_o_box_4e:v2.09:*:linux:*:*:*:*:*
Create a notification for this product.
Date Public
2026-06-17 03:10
Show details on NVD website

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          "type": "remediation reviewer",
          "value": "Kelly Patterson of Cisco Talos"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Robert Sherwin  of Cisco Talos"
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      "datePublic": "2026-06-17T03:10:00.000Z",
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              "value": "GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and RS-485.\u003cbr\u003e\u003cbr\u003e\u003cdiv\u003eDVRSearch is a service running by default on the IOBox listening for UDP messages on port 10001. Any user on the network can send messages to this service and interact with it. \n\u003cbr\u003e\n\u003cbr\u003eUpon receiving a UDP message,  the server reads at most 1460 bytes into a local buffer and a pointer to the buffer is stored in a global variable:\n\u003cbr\u003e\u003cbr\u003e#### Net Mask field stack overflow\u003cbr\u003e\u003cbr\u003eThe following code is vulnerable to a stack overflow that is attacker-controlled:\n\u003cbr\u003e\n\u003cbr\u003e      v6 = strlen(g_network_config-\u0026gt;net_mask);\n\u003cbr\u003e      memcpy(\u0026amp;reply_buf[184], g_network_config-\u0026gt;net_mask, v6);\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c/div\u003e"
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          "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2026-2377"
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      "source": {
        "discovery": "UNKNOWN"
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      "timeline": [
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          "lang": "en",
          "time": "2026-04-21T07:34:00.000Z",
          "value": "Finder Reports Vulnerabilties to Vendor"
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      "title": "GeoVision GV-I/O Box DVRSearch buffer overflow vulnerabilities in CMD_IP_SET command",
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    "assignerShortName": "GV",
    "cveId": "CVE-2026-12846",
    "datePublished": "2026-06-24T03:34:25.543Z",
    "dateReserved": "2026-06-22T00:26:45.854Z",
    "dateUpdated": "2026-06-24T12:55:36.396Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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
Architecture and Design

Use an abstraction library to abstract away risky APIs. Not a complete solution.

Mitigation
Implementation

Implement and perform bounds checking on input.

Mitigation
Implementation

Do not use dangerous functions such as gets. Use safer, equivalent functions which check for boundary errors.

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].

No CAPEC attack patterns related to this CWE.