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).
3363 vulnerabilities reference this CWE, most recent first.
CVE-2026-103780 (GCVE-0-2026-103780)
Vulnerability from cvelistv5 – Published: 2026-10-28 10:14 – Updated: 2026-10-29 10:45
VLAI
EPSS
VEX
Summary
Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1.0 through 8.3.1.40, LTS2026 release versions 8.6.1.0 through 8.6.1.20, contain a Stack-based Buffer Overflow vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to command execution.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 03:57 UTC
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
dell
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://www.dell.com/support/kbdoc/en-us/00051517… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Dell | PowerProtect Data Domain |
Affected:
0 , < 8.9.0.0 or later
(semver)
Affected: 0 , < 7.13.1.90 or later (semver) Affected: 0 , < 8.3.1.50 or later (semver) Affected: 0 , < 8.6.1.30 or later (semver) |
Date Public
2026-10-19 06:30
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CVE-2026-103594 (GCVE-0-2026-103594)
Vulnerability from cvelistv5 – Published: 2026-10-27 15:52 – Updated: 2026-11-04 20:26
VLAI
EPSS
VEX
Title
Fireware OS Stack Buffer Overflow in WireGuard Configuration Allows Remote Code Execution
Summary
A stack-based buffer overflow vulnerability in Fireware OS's WireGuard configuration processing allows a remote attacker that has man-in-the-middle TLS-decrypted access between the Firebox and WatchGuard Cloud to create a Denial of Service condition and potentially execute arbitrary code by tampering with a FireCloud Gateway configuration payload.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 18:45 UTC
Assigner
WatchGuard
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://psirt.watchguard.com/CVE-2026-103594 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| WatchGuard | Fireware OS |
Affected:
2026.2 , < 2026.4
(custom)
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CVE-2026-103593 (GCVE-0-2026-103593)
Vulnerability from cvelistv5 – Published: 2026-10-27 15:52 – Updated: 2026-10-29 10:45
VLAI
EPSS
VEX
Title
Fireware OS Stack Buffer Overflow in Logging Service Allows Remote Code Execution
Summary
A stack-based buffer overflow vulnerability in the Fireware OS logging service allows a network-adjacent attacker who can impersonate or intercept traffic to the configured log server to execute arbitrary code with root privileges by presenting a specially crafted certificate.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 03:56 UTC
Assigner
WatchGuard
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://psirt.watchguard.com/CVE-2026-103593 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| WatchGuard | Fireware OS |
Affected:
2025.1 , < 2026.4
(custom)
Affected: 12.0 , < 12.12.4 (custom) |
|
| WatchGuard | Fireware OS |
Affected:
12.0 , < 12.5.22
(custom)
|
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CVE-2026-103552 (GCVE-0-2026-103552)
Vulnerability from cvelistv5 – Published: 2026-10-02 09:48 – Updated: 2026-10-02 21:07
VLAI
EPSS
VEX
Title
Apache Directory LDAP API: A unbound client can send a deeply nested search filter that overflows the stack in the server's decoder
Summary
Stack Overflow vulnerability in Apache Directory LDAP API.
Before binding, a client can send a deeply nested search filter that overflows the stack in the server's decoder.
This issue affects Apache Directory LDAP API: from 1.2.0 before 1.2.9.
Users are recommended to upgrade to version 1.2.9, which fixes the issue.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-02 18:29 UTC
CWE
- CWE-121 - Stack-based buffer overflow
Assigner
apache
CNA
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Directory LDAP API |
Affected:
1.2.0 , < 1.2.9
(semver)
|
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CVE-2026-103531 (GCVE-0-2026-103531)
Vulnerability from cvelistv5 – Published: 2026-10-01 00:45 – Updated: 2026-10-05 23:57 X_Open Source
VLAI
EPSS
VEX
Title
OpenSC card-setcos.c setcos_construct_fci_44 stack-based overflow
Summary
A flaw has been found in OpenSC up to 0.27.1. The impacted element is the function setcos_construct_fci_44 of the file src/libopensc/card-setcos.c. Executing a manipulation of the argument type_attr can lead to stack-based buffer overflow. The attack can be launched remotely. This patch is called ad730304052937c32b4eb489a06835ac6123632c. It is best practice to apply a patch to resolve this issue.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-05 23:57 UTC
Assigner
VulDB
CNA
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/412343 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/412343/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-103531 | third-party-advisory |
| https://vuldb.com/submit/956910 | third-party-advisory |
| https://github.com/OpenSC/OpenSC/pull/3812 | issue-trackingpatch |
| https://github.com/OpenSC/OpenSC/commit/ad7303040… | patch |
| https://github.com/OpenSC/OpenSC/ | product |
Impacted products
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CVE-2026-103432 (GCVE-0-2026-103432)
Vulnerability from cvelistv5 – Published: 2026-09-30 15:31 – Updated: 2026-09-30 19:35
VLAI
EPSS
VEX
Summary
apcupsd through 3.14.14 has an sscanf stack-based buffer overflow in getupsvar() in src/cgi/upsfetch.c (used by upsstats.cgi, multimon.cgi, and upsfstats.cgi), a related issue to CVE-2026-15544.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 19:35 UTC
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
mitre
CNA
References
Impacted products
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CVE-2026-103408 (GCVE-0-2026-103408)
Vulnerability from cvelistv5 – Published: 2026-10-28 16:36 – Updated: 2026-11-06 18:30
VLAI
EPSS
VEX
Title
Session Smart Router: An attacker-controlled input causes remote code execution when parsing DHCP options
Summary
A Stack Buffer Overflow vulnerability in the DHCP client in Juniper Networks Session Smart Router allows an unauthenticated attacker on the local network to achieve remote code execution via a malicious DHCP reply.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-06 18:25 UTC
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
juniper
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA112183 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Session Smart Router |
Affected:
0 , < 7.0.5
(custom)
Affected: 7.1.0 , < 7.1.7 (custom) Affected: 7.2.0 , < 7.2.3 (custom) |
Date Public
2026-10-28 16:00
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CVE-2026-103226 (GCVE-0-2026-103226)
Vulnerability from cvelistv5 – Published: 2026-09-30 14:15 – Updated: 2026-10-15 16:16 X_Freeware
VLAI
EPSS
VEX
Title
Artifex Ghostscript Pdfwrite gdevpsfx.c type1_callsubr stack-based overflow
Summary
A vulnerability was identified in Artifex Ghostscript up to 10.07.0. Affected is the function type1_callsubr of the file devices/vector/gdevpsfx.c of the component Pdfwrite. The manipulation leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. Upgrading to version 10.08.0 is able to address this issue. It is suggested to upgrade the affected component. A solution was implemented: "I've chosen to fix this slightly differently by using the defined macro in the font parsing loop rather than in the callsubr function, because this better matches the pattern of 'normal' usage."
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 14:24 UTC
Assigner
VulDB
CNA
References
9 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/411906 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/411906/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-103226 | third-party-advisory |
| https://vuldb.com/submit/955016 | third-party-advisory |
| https://bugs.ghostscript.com/show_bug.cgi?id=709672 | issue-tracking |
| https://bugs.ghostscript.com/show_bug.cgi?id=709672#c3 | issue-tracking |
| https://bugs.ghostscript.com/attachment.cgi?id=28495 | exploit |
| https://ghostscript.com/releases/gsdnld.html | patch |
| https://artifex.com/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Artifex | Ghostscript |
Affected:
10.07
Unaffected: 10.08.0 cpe:2.3:a:artifex:ghostscript:*:*:*:*:*:*:*:* |
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CVE-2026-102693 (GCVE-0-2026-102693)
Vulnerability from cvelistv5 – Published: 2026-10-16 16:49 – Updated: 2026-10-16 19:23
VLAI
EPSS
VEX
Title
RIOT: Remote Stack Buffer Overflow in ATWINC15x0 driver via unsanitized SSID
Summary
RIOT is an open-source microcontroller operating system designed for Internet of Things devices and other embedded systems. Prior to 2026.04, the ATWINC15x0 driver's _atwinc15x0_sta_set_current_ssid function uses strcpy to copy an SSID without checking the destination size. When MODULE_ATWINC15X0_DYNAMIC_CONNECT is enabled, a nearby attacker can advertise a malformed or oversized SSID that is processed during Wi-Fi scanning, causing memory corruption and potentially a hard fault, denial of service, or code execution. This issue is fixed in version 2026.04.
Severity
9.6 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 19:22 UTC
CWE
Assigner
GitHub_M
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/RIOT-OS/RIOT/security/advisori… | x_refsource_CONFIRM |
| https://github.com/RIOT-OS/RIOT/commit/5209c1b84f… | x_refsource_MISC |
| https://github.com/RIOT-OS/RIOT/releases/tag/2026.04 | x_refsource_MISC |
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CVE-2026-102199 (GCVE-0-2026-102199)
Vulnerability from cvelistv5 – Published: 2026-10-13 19:01 – Updated: 2026-10-31 18:12
VLAI
EPSS
VEX
Title
Microsoft Windows Codecs Library Denial of Service Vulnerability
Summary
Stack-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to deny service over a network.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 21:17 UTC
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
microsoft
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
21 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows 10 Version 1607 |
Affected:
10.0.14393.0 , < 10.0.14393.9612
(custom)
|
|
| Microsoft | Windows 10 Version 1809 |
Affected:
10.0.17763.0 , < 10.0.17763.9376
(custom)
|
|
| Microsoft | Windows 10 Version 21H2 |
Affected:
10.0.19044.0 , < 10.0.19044.7807
(custom)
|
|
| Microsoft | Windows 10 Version 22H2 |
Affected:
10.0.19045.0 , < 10.0.19045.7807
(custom)
|
|
| Microsoft | Windows 11 version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.7652
(custom)
|
|
| Microsoft | Windows 11 Version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.7652
(custom)
|
|
| Microsoft | Windows 11 Version 24H2 |
Affected:
10.0.26100.0 , < 10.0.26100.9711
(custom)
|
|
| Microsoft | Windows 11 Version 25H2 |
Affected:
10.0.26200.0 , < 10.0.26200.9711
(custom)
|
|
| Microsoft | Windows 11 version 26H1 |
Affected:
10.0.28000.0 , < 10.0.28000.3231
(custom)
|
|
| Microsoft | Windows 11 Version 26H2 |
Affected:
10.0.26300.0 , < 10.0.26300.9711
(custom)
|
|
| Microsoft | Windows Server 2012 |
Affected:
6.2.9200.0 , < 6.2.9200.26434
(custom)
|
|
| Microsoft | Windows Server 2012 (Server Core installation) |
Affected:
6.2.9200.0 , < 6.2.9200.26434
(custom)
|
|
| Microsoft | Windows Server 2012 R2 |
Affected:
6.3.9600.0 , < 6.3.9600.23470
(custom)
|
|
| Microsoft | Windows Server 2012 R2 (Server Core installation) |
Affected:
6.3.9600.0 , < 6.3.9600.23470
(custom)
|
|
| Microsoft | Windows Server 2016 |
Affected:
10.0.14393.0 , < 10.0.14393.9612
(custom)
|
|
| Microsoft | Windows Server 2016 (Server Core installation) |
Affected:
10.0.14393.0 , < 10.0.14393.9612
(custom)
|
|
| Microsoft | Windows Server 2019 |
Affected:
10.0.17763.0 , < 10.0.17763.9376
(custom)
|
|
| Microsoft | Windows Server 2019 (Server Core installation) |
Affected:
10.0.17763.0 , < 10.0.17763.9376
(custom)
|
|
| Microsoft | Windows Server 2022 |
Affected:
10.0.20348.0 , < 10.0.20348.5761
(custom)
|
|
| Microsoft | Windows Server 2025 |
Affected:
10.0.26100.0 , < 10.0.26100.33650
(custom)
|
|
| Microsoft | Windows Server 2025 (Server Core installation) |
Affected:
10.0.26100.0 , < 10.0.26100.33650
(custom)
|
Date Public
2026-10-13 14:00
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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.