Common Weakness Enumeration
CWE-121
AllowedStack-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).
5203 vulnerabilities reference this CWE, most recent first.
CVE-2026-11793 (GCVE-0-2026-11793)
Vulnerability from cvelistv5 – Published: 2026-06-09 13:11 – Updated: 2026-06-30 10:32
VLAI
EPSS
VEX
Title
389-ds-base: 389-ds-base: stack buffer overflow in checkprefix() algorithm id parsing
Summary
A stack buffer overflow flaw was found in 389 Directory Server. The checkPrefix() function in pw.c copies an attacker-controlled algorithm ID into a 256-byte stack buffer without bounds checking when parsing reversible-encrypted attribute values. An attacker with Directory Manager privileges can crash the LDAP server by storing a crafted credential with an oversized algorithm ID. FORTIFY_SOURCE mitigates this to denial of service only.
Severity
4.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-11793 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2484914 | issue-trackingx_refsource_REDHAT |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Directory Server 11 |
cpe:/a:redhat:directory_server:11 |
|
| Red Hat | Red Hat Directory Server 12 |
cpe:/a:redhat:directory_server:12 |
|
| Red Hat | Red Hat Directory Server 13 |
cpe:/a:redhat:directory_server:13 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
Date Public
2026-04-16 00:00
Credits
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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
EPSS
VEX
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
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/369167 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/369167/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-11557 | third-party-advisory |
| https://vuldb.com/submit/836477 | third-party-advisory |
| https://github.com/Robots10/IoT_vlu/blob/main/rep… | exploit |
| https://www.tenda.com.cn/ | product |
Impacted products
Credits
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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
EPSS
VEX
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
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/369163 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/369163/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-11553 | third-party-advisory |
| https://vuldb.com/submit/836778 | third-party-advisory |
| https://github.com/xiezhihua-1127/Tenda-Stack-Ove… | related |
| https://github.com/xiezhihua-1127/Tenda-Stack-Ove… | exploit |
| https://www.tenda.com.cn/ | product |
Impacted products
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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
EPSS
VEX
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
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/369145 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/369145/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-11528 | third-party-advisory |
| https://vuldb.com/submit/836474 | third-party-advisory |
| https://github.com/Robots10/IoT_vlu/blob/main/rep… | exploit |
| https://www.tenda.com.cn/ | product |
Impacted products
Credits
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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
EPSS
VEX
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
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/369144 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/369144/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-11524 | third-party-advisory |
| https://vuldb.com/submit/836478 | third-party-advisory |
| https://github.com/Robots10/IoT_vlu/blob/main/rep… | exploit |
| https://www.tenda.com.cn/ | product |
Impacted products
Credits
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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
EPSS
VEX
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
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/369143 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/369143/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-11523 | third-party-advisory |
| https://vuldb.com/submit/836471 | third-party-advisory |
| https://github.com/Robots10/IoT_vlu/blob/main/rep… | exploit |
| https://www.tenda.com.cn/ | product |
Impacted products
Credits
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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
EPSS
VEX
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
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/369142 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/369142/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-11522 | third-party-advisory |
| https://vuldb.com/submit/836469 | third-party-advisory |
| https://github.com/Robots10/IoT_vlu/blob/main/rep… | exploit |
| https://www.tenda.com.cn/ | product |
Impacted products
Credits
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CVE-2026-11504 (GCVE-0-2026-11504)
Vulnerability from cvelistv5 – Published: 2026-06-08 10:00 – Updated: 2026-06-08 12:57
VLAI
EPSS
VEX
Title
Tenda CX12L Wi-Fi Schedule Configuration Endpoint openSchedWifi setSchedWifi stack-based overflow
Summary
A vulnerability was detected in Tenda CX12L 16.03.53.12. The impacted element is the function setSchedWifi of the file /goform/openSchedWifi of the component Wi-Fi Schedule Configuration Endpoint. Performing a manipulation of the argument schedStartTime/schedEndTime results in stack-based buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/369124 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/369124/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-11504 | third-party-advisory |
| https://vuldb.com/submit/835649 | third-party-advisory |
| https://github.com/cve-a/moist/issues/2 | exploitissue-tracking |
| https://www.tenda.com.cn/ | product |
Impacted products
Credits
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CVE-2026-11503 (GCVE-0-2026-11503)
Vulnerability from cvelistv5 – Published: 2026-06-08 09:45 – Updated: 2026-06-08 16:22
VLAI
EPSS
VEX
Title
Tenda CX12L Wi-Fi Configuration Endpoint fast_setting_wifi_set form_fast_setting_wifi_set stack-based overflow
Summary
A security vulnerability has been detected in Tenda CX12L 16.03.53.12. The affected element is the function form_fast_setting_wifi_set of the file /goform/fast_setting_wifi_set of the component Wi-Fi Configuration Endpoint. Such manipulation of the argument ssid leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/369123 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/369123/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-11503 | third-party-advisory |
| https://vuldb.com/submit/835648 | third-party-advisory |
| https://github.com/cve-a/moist/issues/1 | exploitissue-tracking |
| https://www.tenda.com.cn/ | product |
Impacted products
Credits
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CVE-2026-11499 (GCVE-0-2026-11499)
Vulnerability from cvelistv5 – Published: 2026-06-08 07:00 – Updated: 2026-06-08 12:55
VLAI
EPSS
VEX
Title
Tenda HG7HG9/HG10 formDOMAINBLK stack-based overflow
Summary
A vulnerability was determined in Tenda HG7HG9 and HG10 300001138_en_xpon. This affects the function formDOMAINBLK of the file /boaform/formDOMAINBLK. Executing a manipulation of the argument blkDomain can lead to stack-based buffer overflow. The attack may be performed from remote.
Severity
9.8 (Critical)
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/369119 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/369119/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-11499 | third-party-advisory |
| https://vuldb.com/submit/834888 | third-party-advisory |
| https://github.com/ssaaaa1234/Tenda-HG10-formDOMA… | broken-link |
| https://www.tenda.com.cn/ | product |
Impacted products
Credits
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"permissions-required"
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"url": "https://vuldb.com/vuln/369119/cti"
},
{
"name": "CVE-2026-11499 | CVE Analysis and Report",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/cve/CVE-2026-11499"
},
{
"name": "Submit #834888 | Tenda HG10 HG7_HG9_HG10re_300001138_en_xpon stack-based buffer overflow",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/submit/834888"
},
{
"tags": [
"broken-link"
],
"url": "https://github.com/ssaaaa1234/Tenda-HG10-formDOMAINBLK-stack-overflow-2"
},
{
"tags": [
"product"
],
"url": "https://www.tenda.com.cn/"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-06-07T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-06-07T02:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-06-07T15:28:41.000Z",
"value": "VulDB entry last update"
}
],
"title": "Tenda HG7HG9/HG10 formDOMAINBLK stack-based overflow"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-11499",
"datePublished": "2026-06-08T07:00:23.672Z",
"dateReserved": "2026-06-07T13:23:38.138Z",
"dateUpdated": "2026-06-08T12:55:29.374Z",
"state": "PUBLISHED"
},
"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.