Weakness (CWE)
CWE-121: Stack-based Buffer Overflow
The product writes past the end of a buffer that was allocated on the stack.
How to prevent it (5 mitigations)
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Operation, Build and Compilation
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.
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Architecture and Design
Use an abstraction library to abstract away risky APIs. Not a complete solution.
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Implementation
Implement and perform bounds checking on input.
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Implementation
Do not use dangerous functions such as gets. Use safer, equivalent functions which check for boundary errors.
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Operation, Build and Compilation
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].
Source: MITRE CWE-121
20 results · Clear filters · Feed
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High 8.1CVE-2021-27137 Exploited
An issue was discovered in router/upnp/src/ssdp.c in DD-WRT before 45724. An unsafe strcpy in the UPnP handling functio…
KEV Jul 21, 2026 -
High 8.8CVE-2026-7273 Exploited
A stack-based buffer overflow vulnerability in the CGI program of Zyxel GS1900-48HPv2 firmware versions through 2.90(AB…
KEV Sep 21, 2026 -
Critical 9.8CVE-2025-53521 Exploited
BigIP APM Vulnerability
When a BIG-IP APM access policy is configured on a virtual server, specific malicious traffic can lead to Remote Code Execution (RCE). Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
KEV Mar 27, 2026 -
High 7.7
A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software and Cisco IOS XE Softw…
KEV Sep 29, 2025 -
Critical 9.6
A stack-based buffer overflow vulnerability [CWE-121] vulnerability in Fortinet FortiCamera 2.1.0 through 2.1.3, FortiC…
KEV May 14, 2025 -
Critical 9.8CVE-2025-42599 Exploited
Active! mail 6 BuildInfo: 6.60.05008561 and earlier contains a stack-based buffer overflow vulnerability. Receiving a s…
KEV Apr 28, 2025 -
Critical 9.0
A stack-based buffer overflow in Ivanti Connect Secure before version 22.7R2.6, Ivanti Policy Secure before version 22.…
KEV Apr 4, 2025 -
Critical 9.0
A stack-based buffer overflow in Ivanti Connect Secure before version 22.7R2.5, Ivanti Policy Secure before version 22.…
KEV Jan 8, 2025 -
Critical 10.0
Cisco Small Business RV Series Routers Vulnerabilities
Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization pro…
KEV Mar 3, 2022 -
Critical 10.0CVE-2022-20700 Exploited
Cisco Small Business RV Series Routers Vulnerabilities
Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization pro…
KEV Mar 3, 2022 -
Critical 10.0CVE-2022-20701 Exploited
Cisco Small Business RV Series Routers Vulnerabilities
Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization pro…
KEV Mar 3, 2022 -
Critical 10.0CVE-2022-20703 Exploited
Cisco Small Business RV Series Routers Vulnerabilities
Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization pro…
KEV Mar 3, 2022 -
Critical 10.0
Cisco Small Business RV Series Routers Vulnerabilities
Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization pro…
KEV Mar 3, 2022 -
Critical 9.8
A Stack-based buffer overflow vulnerability in SMA100 Apache httpd server's mod_cgi module environment variables allows…
KEV Jan 28, 2022 -
High 8.8
Amcrest cameras and NVR are vulnerable to a stack-based buffer overflow over port 37777. An authenticated remote attack…
KEV Nov 3, 2021 -
High 7.8
Adobe Flash Player versions 29.0.0.171 and earlier have a Stack-based buffer overflow vulnerability. Successful exploit…
KEV May 23, 2022 -
High 7.8
Stack-based buffer overflow in Adobe Flash Player before 13.0.0.259 and 14.x and 15.x before 15.0.0.246 on Windows and …
KEV Apr 13, 2022 -
High 8.4
Stack-based buffer overflow in the acdb_ioctl function in audio_acdb.c in the acdb audio driver for the Linux kernel 2.…
KEV Sep 15, 2022 -
High 8.8
Stack-based buffer overflow in the CComVariant::ReadFromStream function in the Active Template Library (ATL), as used i…
KEV Feb 17, 2026 -
High 8.8
Stack-based buffer overflow in Adobe Reader and Adobe Acrobat 9 before 9.1, 8 before 8.1.3 , and 7 before 7.1.1 allows …
KEV Mar 25, 2022