CWE-121
Stack-based Buffer Overflow
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).
CVE-2026-50259 (GCVE-0-2026-50259)
Vulnerability from cvelistv5 – Published: 2026-06-05 10:31 – Updated: 2026-06-05 13:00
VLAI
Title
Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: stack buffer overflow in xkb setmap request via mapwidths indexing
Summary
A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. _XkbSetMapChecks() declares a fixed-size stack buffer mapWidths[256] indexed by key type index. The helper function CheckKeyTypes() writes to this buffer at a client-controlled offset, allowing a stack buffer overflow. This may be used to crash the server, or for privilege escalation if the X server runs as root.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-50259 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2485384 | issue-trackingx_refsource_REDHAT |
| https://gitlab.freedesktop.org/xorg/xserver/-/com… | |
| https://lists.x.org/archives/xorg-announce/2026-J… | |
| https://redhat.atlassian.net/browse/PSIRTSUPT-16950 |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| 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
2026-06-02 00:00
Credits
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CVE-2026-5036 (GCVE-0-2026-5036)
Vulnerability from cvelistv5 – Published: 2026-03-29 07:45 – Updated: 2026-03-30 12:15
VLAI
Title
Tenda 4G06 Endpoint DhcpListClient fromDhcpListClient stack-based overflow
Summary
A vulnerability was found in Tenda 4G06 04.06.01.29. This vulnerability affects the function fromDhcpListClient of the file /goform/DhcpListClient of the component Endpoint. Performing a manipulation of the argument page results in stack-based buffer overflow. The attack can be initiated 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
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/353962 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/353962/cti | signaturepermissions-required |
| https://vuldb.com/submit/778625 | third-party-advisory |
| https://github.com/Kiciot/cve/issues/1 | exploitissue-tracking |
| https://www.tenda.com.cn/ | product |
Credits
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CVE-2026-5037 (GCVE-0-2026-5037)
Vulnerability from cvelistv5 – Published: 2026-03-29 08:45 – Updated: 2026-04-01 14:32 X_Open Source
VLAI
Title
mxml mxmlIndexNew mxml-index.c index_sort stack-based overflow
Summary
A vulnerability was determined in mxml up to 4.0.4. This issue affects the function index_sort of the file mxml-index.c of the component mxmlIndexNew. Executing a manipulation of the argument tempr can lead to stack-based buffer overflow. The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized. This patch is called 6e27354466092a1ac65601e01ce6708710bb9fa5. A patch should be applied to remediate this issue.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/353963 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/353963/cti | signaturepermissions-required |
| https://vuldb.com/submit/778638 | third-party-advisory |
| https://github.com/michaelrsweet/mxml/issues/350 | issue-tracking |
| https://github.com/michaelrsweet/mxml/issues/350#… | issue-tracking |
| https://github.com/user-attachments/files/2593438… | exploit |
| https://github.com/michaelrsweet/mxml/commit/6e27… | patch |
Impacted products
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CVE-2026-5042 (GCVE-0-2026-5042)
Vulnerability from cvelistv5 – Published: 2026-03-29 10:30 – Updated: 2026-03-30 14:52
VLAI
Title
Belkin F9K1122 Parameter formCrossBandSwitch stack-based overflow
Summary
A security flaw has been discovered in Belkin F9K1122 1.00.33. The affected element is the function formCrossBandSwitch of the file /goform/formCrossBandSwitch of the component Parameter Handler. The manipulation of the argument webpage results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been released to the public and may 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 (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
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| https://vuldb.com/submit/779123 | third-party-advisory |
| https://github.com/Litengzheng/vul_db/blob/main/B… | exploit |
Impacted products
Credits
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CVE-2026-5043 (GCVE-0-2026-5043)
Vulnerability from cvelistv5 – Published: 2026-03-29 11:15 – Updated: 2026-03-30 15:56
VLAI
Title
Belkin F9K1122 Parameter formSetPassword stack-based overflow
Summary
A weakness has been identified in Belkin F9K1122 1.00.33. The impacted element is the function formSetPassword of the file /goform/formSetPassword of the component Parameter Handler. This manipulation of the argument webpage causes stack-based buffer overflow. Remote exploitation of the attack is possible. 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 (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/353966 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/353966/cti | signaturepermissions-required |
| https://vuldb.com/submit/779124 | third-party-advisory |
| https://github.com/Litengzheng/vul_db/blob/main/B… | exploit |
Impacted products
Credits
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CVE-2026-5044 (GCVE-0-2026-5044)
Vulnerability from cvelistv5 – Published: 2026-03-29 12:15 – Updated: 2026-03-30 11:48
VLAI
Title
Belkin F9K1122 Setting formSetSystemSettings stack-based overflow
Summary
A security vulnerability has been detected in Belkin F9K1122 1.00.33. This affects the function formSetSystemSettings of the file /goform/formSetSystemSettings of the component Setting Handler. Such manipulation of the argument webpage leads to stack-based buffer overflow. The attack can be executed remotely. The exploit has been disclosed publicly and may be used. 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 (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/353967 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/353967/cti | signaturepermissions-required |
| https://vuldb.com/submit/779125 | third-party-advisory |
| https://github.com/Litengzheng/vul_db/blob/main/B… | exploit |
Impacted products
Credits
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CVE-2026-5045 (GCVE-0-2026-5045)
Vulnerability from cvelistv5 – Published: 2026-03-29 13:15 – Updated: 2026-04-01 15:35
VLAI
Title
Tenda FH1201 Parameter WrlclientSet stack-based overflow
Summary
A vulnerability was detected in Tenda FH1201 1.2.0.14(408). This impacts the function WrlclientSet of the file /goform/WrlclientSet of the component Parameter Handler. Performing a manipulation of the argument GO results in stack-based buffer overflow. The attack is possible to be carried out 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
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/353968 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/353968/cti | signaturepermissions-required |
| https://vuldb.com/submit/779126 | third-party-advisory |
| https://github.com/Litengzheng/vul_db/blob/main/F… | exploit |
| https://www.tenda.com.cn/ | product |
Impacted products
Credits
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CVE-2026-5046 (GCVE-0-2026-5046)
Vulnerability from cvelistv5 – Published: 2026-03-29 14:15 – Updated: 2026-03-30 14:10
VLAI
Title
Tenda FH1201 Parameter WrlExtraSet formWrlExtraSet stack-based overflow
Summary
A flaw has been found in Tenda FH1201 1.2.0.14(408). Affected is the function formWrlExtraSet of the file /goform/WrlExtraSet of the component Parameter Handler. Executing a manipulation of the argument GO can lead to stack-based buffer overflow. The attack may be performed from remote. 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
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/353969 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/353969/cti | signaturepermissions-required |
| https://vuldb.com/submit/779127 | third-party-advisory |
| https://github.com/Litengzheng/vul_db/blob/main/F… | exploit |
| https://www.tenda.com.cn/ | product |
Impacted products
Credits
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CVE-2026-5152 (GCVE-0-2026-5152)
Vulnerability from cvelistv5 – Published: 2026-03-30 20:30 – Updated: 2026-03-31 18:05
VLAI
Title
Tenda CH22 createFileName formCreateFileName stack-based overflow
Summary
A vulnerability was detected in Tenda CH22 1.0.0.1. Impacted is the function formCreateFileName of the file /goform/createFileName. Performing a manipulation of the argument fileNameMit 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
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/354184 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/354184/cti | signaturepermissions-required |
| https://vuldb.com/submit/780203 | third-party-advisory |
| https://github.com/Litengzheng/vuldb_new/blob/mai… | exploit |
| https://www.tenda.com.cn/ | product |
Impacted products
Credits
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CVE-2026-5154 (GCVE-0-2026-5154)
Vulnerability from cvelistv5 – Published: 2026-03-30 22:30 – Updated: 2026-03-31 13:32
VLAI
Title
Tenda CH22 Parameter setcfm fromSetCfm stack-based overflow
Summary
A vulnerability has been found in Tenda CH22 1.0.0.1/1.If. The impacted element is the function fromSetCfm of the file /goform/setcfm of the component Parameter Handler. The manipulation of the argument funcname leads to stack-based buffer overflow. Remote exploitation of the attack is possible. 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
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/354186 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/354186/cti | signaturepermissions-required |
| https://vuldb.com/submit/780206 | third-party-advisory |
| https://github.com/Litengzheng/vuldb_new/blob/mai… | exploit |
| https://www.tenda.com.cn/ | product |
Impacted products
Credits
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Mitigation ID: MIT-10
Phases: Operation, Build and Compilation
Strategy: Environment Hardening
Description:
- 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
Phase: Architecture and Design
Description:
- Use an abstraction library to abstract away risky APIs. Not a complete solution.
Mitigation
Phase: Implementation
Description:
- Implement and perform bounds checking on input.
Mitigation
Phase: Implementation
Description:
- Do not use dangerous functions such as gets. Use safer, equivalent functions which check for boundary errors.
Mitigation ID: MIT-11
Phases: Operation, Build and Compilation
Strategy: Environment Hardening
Description:
- 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.