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).
5534 vulnerabilities reference this CWE, most recent first.
CVE-2026-4974 (GCVE-0-2026-4974)
Vulnerability from cvelistv5 – Published: 2026-03-27 19:52 – Updated: 2026-03-31 13:54
VLAI
EPSS
VEX
Title
Tenda AC7 POST Request SetSysTimeCfg fromSetSysTime memory corruption
Summary
A flaw has been found in Tenda AC7 15.03.06.44. Affected by this issue is the function fromSetSysTime of the file /goform/SetSysTimeCfg of the component POST Request Handler. Executing a manipulation of the argument Time can lead to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been published and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-31 13:54 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.353861 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.353861 | signaturepermissions-required |
| https://vuldb.com/?submit.778207 | third-party-advisory |
| https://lavender-bicycle-a5a.notion.site/Tenda-AC… | exploit |
| https://www.tenda.com.cn/ | product |
Impacted products
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CVE-2026-4961 (GCVE-0-2026-4961)
Vulnerability from cvelistv5 – Published: 2026-03-27 16:09 – Updated: 2026-03-27 22:07
VLAI
EPSS
VEX
Title
Tenda AC6 POST Request QuickIndex formQuickIndex stack-based overflow
Summary
A vulnerability was identified in Tenda AC6 15.03.05.16. Affected by this vulnerability is the function formQuickIndex of the file /goform/QuickIndex of the component POST Request Handler. The manipulation of the argument PPPOEPassword leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is publicly available and might be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-27 17:25 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.353838 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.353838 | signaturepermissions-required |
| https://vuldb.com/?submit.777617 | third-party-advisory |
| https://lavender-bicycle-a5a.notion.site/Tenda-AC… | exploit |
| https://www.tenda.com.cn/ | product |
Impacted products
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CVE-2026-4960 (GCVE-0-2026-4960)
Vulnerability from cvelistv5 – Published: 2026-03-27 16:09 – Updated: 2026-03-27 22:07
VLAI
EPSS
VEX
Title
Tenda AC6 POST Request WizardHandle fromWizardHandle stack-based overflow
Summary
A vulnerability was determined in Tenda AC6 15.03.05.16. Affected is the function fromWizardHandle of the file /goform/WizardHandle of the component POST Request Handler. Executing a manipulation of the argument WANT/WANS can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-27 18:50 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.353837 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.353837 | signaturepermissions-required |
| https://vuldb.com/?submit.777616 | third-party-advisory |
| https://lavender-bicycle-a5a.notion.site/Tenda-AC… | exploit |
| https://www.tenda.com.cn/ | product |
Impacted products
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CVE-2026-4906 (GCVE-0-2026-4906)
Vulnerability from cvelistv5 – Published: 2026-03-27 00:53 – Updated: 2026-03-30 11:56
VLAI
EPSS
VEX
Title
Tenda AC5 POST Request WizardHandle decodePwd stack-based overflow
Summary
A vulnerability was determined in Tenda AC5 15.03.06.47. The affected element is the function decodePwd of the file /goform/WizardHandle of the component POST Request Handler. Executing a manipulation of the argument WANT/WANS can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-30 11:56 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.353657 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.353657 | signaturepermissions-required |
| https://vuldb.com/?submit.777394 | third-party-advisory |
| https://lavender-bicycle-a5a.notion.site/Tenda_AC… | exploit |
| https://www.tenda.com.cn/ | product |
Impacted products
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CVE-2026-4905 (GCVE-0-2026-4905)
Vulnerability from cvelistv5 – Published: 2026-03-26 23:11 – Updated: 2026-03-27 11:27
VLAI
EPSS
VEX
Title
Tenda AC5 POST Request WifiWpsOOB formWifiWpsOOB stack-based overflow
Summary
A vulnerability was found in Tenda AC5 15.03.06.47. Impacted is the function formWifiWpsOOB of the file /goform/WifiWpsOOB of the component POST Request Handler. Performing a manipulation of the argument index results in stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been made public and could be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-27 11:24 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.353656 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.353656 | signaturepermissions-required |
| https://vuldb.com/?submit.777393 | third-party-advisory |
| https://lavender-bicycle-a5a.notion.site/Tenda_AC… | exploit |
| https://www.tenda.com.cn/ | product |
Impacted products
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CVE-2026-4904 (GCVE-0-2026-4904)
Vulnerability from cvelistv5 – Published: 2026-03-26 23:11 – Updated: 2026-03-27 20:08
VLAI
EPSS
VEX
Title
Tenda AC5 POST Request setcfm formSetCfm stack-based overflow
Summary
A vulnerability has been found in Tenda AC5 15.03.06.47. This issue affects the function formSetCfm of the file /goform/setcfm of the component POST Request Handler. Such manipulation of the argument funcpara1 leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-27 20:08 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.353655 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.353655 | signaturepermissions-required |
| https://vuldb.com/?submit.777381 | third-party-advisory |
| https://lavender-bicycle-a5a.notion.site/Tenda_AC… | exploit |
| https://www.tenda.com.cn/ | product |
Impacted products
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CVE-2026-4903 (GCVE-0-2026-4903)
Vulnerability from cvelistv5 – Published: 2026-03-26 22:30 – Updated: 2026-03-27 20:00
VLAI
EPSS
VEX
Title
Tenda AC5 POST Request QuickIndex formQuickIndex memory corruption
Summary
A flaw has been found in Tenda AC5 15.03.06.47. This vulnerability affects the function formQuickIndex of the file /goform/QuickIndex of the component POST Request Handler. This manipulation of the argument PPPOEPassword causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been published and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-27 14:10 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.353654 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.353654 | signaturepermissions-required |
| https://vuldb.com/?submit.777380 | third-party-advisory |
| https://lavender-bicycle-a5a.notion.site/Tenda_AC… | exploit |
| https://www.tenda.com.cn/ | product |
Impacted products
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CVE-2026-4902 (GCVE-0-2026-4902)
Vulnerability from cvelistv5 – Published: 2026-03-26 22:30 – Updated: 2026-03-27 13:54
VLAI
EPSS
VEX
Title
Tenda AC5 POST Request addressNat fromAddressNat memory corruption
Summary
A vulnerability was detected in Tenda AC5 15.03.06.47. This affects the function fromAddressNat of the file /goform/addressNat of the component POST Request Handler. The manipulation of the argument page results in stack-based buffer overflow. The attack can be launched remotely. The exploit is now public and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-27 13:29 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.353653 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.353653 | signaturepermissions-required |
| https://vuldb.com/?submit.777378 | third-party-advisory |
| https://lavender-bicycle-a5a.notion.site/Tenda_AC… | exploit |
| https://www.tenda.com.cn/ | product |
Impacted products
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CVE-2026-4861 (GCVE-0-2026-4861)
Vulnerability from cvelistv5 – Published: 2026-03-26 08:18 – Updated: 2026-03-26 18:28
VLAI
EPSS
VEX
Title
Wavlink WL-NU516U1 nas.cgi ftext stack-based overflow
Summary
A weakness has been identified in Wavlink WL-NU516U1 260227. This vulnerability affects the function ftext of the file /cgi-bin/nas.cgi. This manipulation of the argument Content-Length causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-26 18:28 UTC
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.353192 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.353192 | signaturepermissions-required |
| https://vuldb.com/?submit.776217 | third-party-advisory |
| https://github.com/Wlz1112/WAVLINK-NU516U1-V26022… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wavlink | WL-NU516U1 |
Affected:
260227
cpe:2.3:o:wavlink:wl-nu516u1_firmware:*:*:*:*:*:*:*:* |
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CVE-2026-4747 (GCVE-0-2026-4747)
Vulnerability from cvelistv5 – Published: 2026-03-26 06:21 – Updated: 2026-04-02 03:55
VLAI
EPSS
VEX
Title
Remote code execution via RPCSEC_GSS packet validation
Summary
Each RPCSEC_GSS data packet is validated by a routine which checks a signature in the packet. This routine copies a portion of the packet into a stack buffer, but fails to ensure that the buffer is sufficiently large, and a malicious client can trigger a stack overflow. Notably, this does not require the client to authenticate itself first.
As kgssapi.ko's RPCSEC_GSS implementation is vulnerable, remote code execution in the kernel is possible by an authenticated user that is able to send packets to the kernel's NFS server while kgssapi.ko is loaded into the kernel.
In userspace, applications which have librpcgss_sec loaded and run an RPC server are vulnerable to remote code execution from any client able to send it packets. We are not aware of any such applications in the FreeBSD base system.
Severity
8.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-26 00:00 UTC
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
3 references
Impacted products
Date Public
2026-03-26 05:00
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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.