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
4,196 results · Feed
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Critical 9.8
Buffer overflow vulnerability in cannelloni v2.0.0 in CAN frame parsing in parser.cpp in function parseCANFrame, and de…
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High 7.5
AGL agl-service-can-low-level thru 17.1.12 contains a stack buffer overflow in the uds-c library. The send_diagnostic_r…
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High 8.8
miaofng/uds-c commit e506334e270d77b20c0bc259ac6c7d8c9b702b7a (2016-10-05) contains a stack buffer overflow in send_dia…
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High 7.5
Buffer overflow vulnerability in socketcand 0.4.2 in file socketcand.c in function main allows attackers to cause a den…
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High 7.1
Buffer overflow in the Secure Access server prior to 14.50
CVE-2026-40950 is a buffer overflow vulnerability in the Secure Access server prior to 14.50. Attackers with control of a modified client can send a specially crafted message to the server and cause a denial of service
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Medium 6.8
Buffer overflow in Windows clients prior to 14.50
CVE-2026-40949 is a buffer overflow vulnerability in the Secure Access Windows client prior to 14.50. Attackers with local control of the Windows client can use it to trigger a denial of service.
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Medium 5.9
Buffer overflow in Windows clients prior to 14.50
CVE-2026-33452 is a buffer overflow vulnerability in the Secure Access Windows client prior to 14.50. Attackers with local control of the Windows client can use it to ‘blue screen’ the system.
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Low 2.3
Message handler buffer overflow in clients prior to 14.50
CVE-2026-33449 is a buffer overflow in a message handling function of the Secure Access client prior to 14.50. Attackers with control of a modified server can send a cryptographically valid message to the client, overwriting a small portion of memory conceiva…
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Low 2.3
CVE-2026-33447 is a buffer overflow in a message parsing function of the Secure Access client prior to 14.50. Attackers…
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High 7.8
Stack overflow via select() file descriptor set overflow
When exchanging data over a socket, libnv uses select(2) to wait for data to arrive. However, it does not verify whether the provided socket descriptor fits in select(2)'s file descriptor set size limit of FD_SETSIZE (1024). An attacker who is able to force a…
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Medium 5.5
Stack-based Buffer Overflow in Wireshark
AMR-NB codec crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
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Medium 5.5
Stack-based Buffer Overflow in Wireshark
BEEP protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
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Medium 5.5
Stack-based Buffer Overflow in Wireshark
ZigBee protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
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Medium 5.5
Stack-based Buffer Overflow in Wireshark
HTTP protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
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High 8.8
Tenda 4G300 SafeMacFilter sub_427C3C stack-based overflow
A flaw has been found in Tenda 4G300 US_4G300V1.0Mt_V1.01.42_CN_TDC01. Affected is the function sub_427C3C of the file /goform/SafeMacFilter. This manipulation of the argument page causes stack-based buffer overflow. Remote exploitation of the attack is possi…
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High 8.4
Allok Video to DVD Burner 2.6.1217 Buffer Overflow SEH
Allok Video to DVD Burner 2.6.1217 contains a stack-based buffer overflow vulnerability in the License Name field that allows local attackers to execute arbitrary code by triggering a structured exception handler (SEH) overwrite. Attackers can craft a malicio…
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Medium 6.5
Wazuh: Pre-auth stack-based buffer overflow in wazuh-remoted print_hex_string() due to signed char promotion on x86_64
Wazuh is a free and open source platform used for threat prevention, detection, and response. From version 4.8.0 to before version 4.14.4, a stack-based buffer overflow exists in print_hex_string() in wazuh-remoted. The bug is triggered when formatting attack…
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Medium 4.9
A post-authentication Stack-based Buffer Overflow vulnerabilities in SonicOS allows a remote attacker to crash a firewa…
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High 7.5
TOTOLINK A3002RU V3 <= V3.0.0-B20220304.1804 was discovered to contain a stack-based buffer overflow via the hostname p…
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High 8.8
Tenda HG3 formIPv6Routing formUploadConfig stack-based overflow
A vulnerability was determined in Tenda HG3 2.0. Impacted is the function formUploadConfig of the file /boaform/formIPv6Routing. This manipulation of the argument destNet causes stack-based buffer overflow. It is possible to initiate the attack remotely. The …
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High 8.8
Tenda FH1202 httpd WrlclientSet fromWrlclientSet stack-based overflow
A vulnerability was determined in Tenda FH1202 1.2.0.14. This affects the function fromWrlclientSet of the file /goform/WrlclientSet of the component httpd. Executing a manipulation of the argument Go can lead to stack-based buffer overflow. The attack may be…
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High 8.8
Tenda FH1202 httpd WrlExtraSet stack-based overflow
A vulnerability was found in Tenda FH1202 1.2.0.14(408). Affected by this issue is the function WrlExtraSet of the file /goform/WrlExtraSet of the component httpd. Performing a manipulation of the argument Go results in stack-based buffer overflow. The attack…
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High 8.8
Improper validation of NBNS name_len in arduino-esp32 NetBIOS leads to memory corruption
arduino-esp32 is an Arduino core for the ESP32, ESP32-S2, ESP32-S3, ESP32-C3, ESP32-C6 and ESP32-H2 microcontrollers. Prior to 3.3.8, there is a remotely reachable memory corruption issue in the NBNS packet handling path. When NetBIOS is enabled by calling NB…
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High 8.1
rust-openssl: MdCtxRef::digest_final() writes past caller buffer with no length check
rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.10.39 to before 0.10.78, EVP_DigestFinal() always writes EVP_MD_CTX_size(ctx) to the out buffer. If out is smaller than that, MdCtxRef::digest_final() writes past its end, usuall…
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High 7.8
rxrpc: proc: size address buffers for %pISpc output
In the Linux kernel, the following vulnerability has been resolved: rxrpc: proc: size address buffers for %pISpc output The AF_RXRPC procfs helpers format local and remote socket addresses into fixed 50-byte stack buffers with "%pISpc". That is too small for …
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Critical 9.8
No checking of the length of the buffer with the directory name in AS320T
Delta Electronics AS320T has no checking of the length of the buffer with the directory name vulnerability.
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Critical 9.8
No checking of the length of the buffer with the file name in AS320T
Delta Electronics AS320T has No checking of the length of the buffer with the file name vulnerability.
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High 8.1
Dell PowerProtect Data Domain with Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through 8.6, LTS…
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High 8.1
PJSIP: Stack buffer overflow in pjsip_auth_create_digest2()
PJSIP is a free and open source multimedia communication library written in C. In 2.16 and earlier, a stack buffer overflow exists in pjsip_auth_create_digest2() in PJSIP when using pre-computed digest credentials (PJSIP_CRED_DATA_DIGEST). The function copies…
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Critical 10.0
Storable versions before 3.05 for Perl has a stack overflow
Storable versions before 3.05 for Perl has a stack overflow. The retrieve_hook function stored the length of the class name into a signed integer but in read operations treated the length as unsigned. This allowed an attacker to craft data that could trigger …
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Medium 6.7
Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.6, LTS2025 release version 8.3.1.0 through 8.3.1.20, LTS2024 …
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High 8.6CVE-2026-6643 Public exploit
A stack-based buffer overflow vulnerability in the VPN Clients on the ADM
A stack-based buffer overflow vulnerability was found in the VPN Clients on the ADM. The issue stems from the use of unbounded sscanf() and passing user-controlled data directly to printf(). Due to the lack of PIE and Stack Canary protections, an authenticate…
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High 8.8
SD-330AC and AMC Manager provided by silex technology, Inc. contain a stack-based buffer overflow vulnerability in proc…
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High 8.6CVE-2026-40489 Public exploit
editorconfig-core-c has incomplete fix for CVE-2023-0341
editorconfig-core-c is an EditorConfig core library for use by plugins supporting EditorConfig parsing. Versions up to and including 0.12.10 have a stack-based buffer overflow in ec_glob() that allows an attacker to crash any application using libeditorconfig…
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High 7.5
ngtcp2 has a qlog transport parameter serialization stack buffer overflow
ngtcp2 is a C implementation of the IETF QUIC protocol. In versions prior to 1.22.1, ngtcp2_qlog_parameters_set_transport_params() serializes peer transport parameters into a fixed 1024-byte stack buffer without bounds checking. When qlog is enabled, a remote…
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Critical 9.8
Openfind｜MailGates/MailAudit - Stack-based Buffer Overflow
MailGates/MailAudit developed by Openfind has a Stack-based Buffer Overflow vulnerability, allowing unauthenticated remote attackers to control the program's execution flow and execute arbitrary code.
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High 8.7
Certain HP DeskJet All In One (AIO) Devices – Potential Remote Code Execution & Potential Buffer Overflow
Certain HP DeskJet All in One devices may be vulnerable to remote code execution caused by a buffer overflow when specially crafted Web Services for Devices (WSD) scan requests are improperly validated and handled by the MFP. WSD Scan is a Microsoft Windows–b…
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High 7.5
CentSDR commit e40795 was discovered to contain a stack overflow in the "Thread1" function.
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Medium 6.9
ImageMagick has has a stack-buffer-overflow in MNG encoder with oversized pallete
The patch for GHSA-7h7q-j33q-hvpf was incomplete and still allows a stack buffer overflow for the multi frame images.
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High 7.5
.NET and Visual Studio Denial of Service Vulnerability
Stack-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to deny service over a network.