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
573 results · Clear filters · Feed
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Critical 9.8
A stack-based buffer overflow vulnerability exists in the MFER parsing functionality of The Biosig Project libbiosig 3.…
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Critical 9.8
A stack-based buffer overflow vulnerability exists in the MFER parsing functionality of The Biosig Project libbiosig 3.…
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Critical 9.8
A stack-based buffer overflow vulnerability exists in the MFER parsing functionality of The Biosig Project libbiosig 3.…
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Critical 9.8
A stack-based buffer overflow vulnerability exists in the MFER parsing functionality of The Biosig Project libbiosig 3.…
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Critical 9.3CVE-2009-10006 Public exploit
UFO: Alien Invasion <= 2.2.1 IRC Client Buffer Overflow
UFO: Alien Invasion versions up to and including 2.2.1 contain a buffer overflow vulnerability in its built-in IRC client component. When the client connects to an IRC server and receives a crafted numeric reply (specifically a 001 message), the application f…
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Critical 9.3CVE-2010-20122 Public exploit
Xftp FTP Client <= 3.0 PWD Response Buffer Overflow
Xftp FTP Client version up to and including 3.0 (build 0238) contain a stack-based buffer overflow vulnerability triggered by a maliciously crafted PWD response from an FTP server. When the client connects to a server and receives an overly long directory str…
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Critical 9.3CVE-2010-20113 Public exploit
EasyFTP Server list.html path Stack Buffer Overflow
EasyFTP Server 1.7.0.11 and earlier contains a stack-based buffer overflow vulnerability in its HTTP interface. When processing a GET request to list.html, the server fails to properly validate the length of the path parameter. Supplying an excessively long v…
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Critical 9.3CVE-2010-20121 Public exploit
EasyFTP Server <= 1.7.0.11 CWD Command Stack Buffer Overflow
EasyFTP Server versions up to 1.7.0.11 contain a stack-based buffer overflow vulnerability in the FTP command parser. When processing the CWD (Change Working Directory) command, the server fails to properly validate the length of the input string, allowing at…
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Critical 9.3CVE-2010-20112 Public exploit
Amlibweb NetOpacs webquery.dll Stack Buffer Overflow
Amlib’s NetOpacs webquery.dll contains a stack-based buffer overflow vulnerability triggered by improper handling of HTTP GET parameters. Specifically, the application fails to enforce bounds on input supplied to the app parameter, allowing excessive data to …
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Critical 9.3CVE-2010-20049 Public exploit
LeapFTP < 3.1.x Stack Buffer Overflow
LeapFTP < 3.1.x contains a stack-based buffer overflow vulnerability in its FTP client parser. When the client receives a directory listing containing a filename longer than 528 bytes, the application fails to properly bound-check the input and overwrites the…
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Critical 9.3CVE-2012-10060 Public exploit
Sysax Multi Server < 5.55 SSH Username Buffer Overflow
Sysax Multi Server versions prior to 5.55 contain a stack-based buffer overflow in its SSH service. When a remote attacker supplies an overly long username during authentication, the server copies the input to a fixed-size stack buffer without proper bounds c…
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Critical 9.3CVE-2011-10016 Public exploit
Real Networks Netzip Classic 7.5.1.86 File Parsing Buffer Overflow
Real Networks Netzip Classic version 7.5.1.86 is vulnerable to a stack-based buffer overflow when parsing a specially crafted ZIP archive. The vulnerability is triggered when the application attempts to process a file name within the archive that exceeds the …
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Critical 10.0CVE-2012-10058 Public exploit
RabidHamster R4 Log Entry sprintf() Buffer Overflow
RabidHamster R4 v1.25 contains a stack-based buffer overflow vulnerability due to unsafe use of sprintf() when logging malformed HTTP requests. A remote attacker can exploit this flaw by sending a specially crafted URI, resulting in arbitrary code execution u…
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Critical 9.3CVE-2011-10015 Public exploit
Cytel Studio <= 9.0 .CY3 File Stack Buffer Overflow
Cytel Studio version 9.0 and earlier is vulnerable to a stack-based buffer overflow triggered by parsing a malformed .CY3 file. The vulnerability occurs when the application copies user-controlled strings into a fixed-size stack buffer (256 bytes) without pro…
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Critical 9.3CVE-2012-10053 Public exploit
Simple Web Server Connection Header Buffer Overflow
Simple Web Server 2.2 rc2 contains a stack-based buffer overflow vulnerability in its handling of the Connection HTTP header. When a remote attacker sends an overly long string in this header, the server uses vsprintf() without proper bounds checking, leading…
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Critical 9.3CVE-2012-10043 Public exploit
ActFax 4.32 Client Importer Buffer Overflow
A stack-based buffer overflow vulnerability exists in ActFax Server version 4.32, specifically in the "Import Users from File" functionality of the client interface. The application fails to properly validate the length of tab-delimited fields in .exp files, …
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Critical 9.8
NVIDIA Triton Inference Server contains a vulnerability where an attacker could cause a stack overflow through speciall…
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Critical 9.8
NVIDIA Triton Inference Server for Windows and Linux contains a vulnerability where an attacker could cause stack buffe…
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Critical 9.4CVE-2013-10068 Public exploit
Foxit Reader <= 5.4.5.0114 Plugin URL Processing Buffer Overflow
Foxit Reader versions through 5.4.5.0114, including the bundled Foxit Reader Plugin 2.2.1.530, contains a stack-based buffer overflow vulnerability in the npFoxitReaderPlugin.dll module. When a PDF file is loaded from a remote host, an overly long query strin…
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Critical 9.3CVE-2013-10064 Public exploit
ActFax 5.01 RAW Server Buffer Overflow
A stack-based buffer overflow vulnerability exists in ActFax Server version 5.01. The server's RAW protocol interface fails to safely process user-supplied data in @F506 fax header fields due to insecure usage of strcpy. Remote attackers can exploit this vuln…
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Critical 9.3CVE-2013-10042 Public exploit
freeFTPd <= 1.0.10 PASS Command Stack-Based Buffer Overflow
A stack-based buffer overflow vulnerability exists in freeFTPd version 1.0.10 and earlier in the handling of the FTP PASS command. When an attacker sends a specially crafted password string, the application fails to validate input length, resulting in memory …
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Critical 9.3CVE-2012-10021 Public exploit
D-Link DIR-605L Captcha Handling Buffer Overflow
A stack-based buffer overflow vulnerability exists in D-Link DIR-605L Wireless N300 Cloud Router firmware versions 1.12 and 1.13 via the getAuthCode() function. The flaw arises from unsafe usage of sprintf() when processing user-supplied CAPTCHA data via the …
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Critical 9.3CVE-2014-125117 Public exploit
D-Link info.cgi POST Request Stack-Based Buffer Overflow RCE
A stack-based buffer overflow vulnerability in the my_cgi.cgi component of certain D-Link devices, including the DSP-W215 version 1.02, can be exploited via a specially crafted HTTP POST request to the /common/info.cgi endpoint. This flaw enables an unauthent…
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Critical 9.8
Weidmueller: Unauthenticated Stack-Based Buffer Overflow in u-link Management API
An unauthenticated remote attacker may use a stack based buffer overflow in the u-link Management API to gain full access on the affected devices.
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Critical 9.8
ASKEY｜modem - Stack-based Buffer Overflow
Certain modem models developed by Askey has a Stack-based Buffer Overflow vulnerability, allowing unauthenticated remote attackers to control the program's execution flow and potentially execute arbitrary code.
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Critical 9.3CVE-2025-34127 Public exploit
Achat v0.150 SEH Buffer Overflow via UDP
A stack-based buffer overflow exists in Achat v0.150 in its default configuration. By sending a specially crafted message to the UDP port 9256, an attacker can overwrite the structured exception handler (SEH) due to insufficient bounds checking on user-suppli…
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Critical 9.8CVE-2025-7206 EPSS 22%
D-Link DIR-825 httpd switch_language.cgi sub_410DDC stack-based overflow
A vulnerability, which was classified as critical, has been found in D-Link DIR-825 2.10. This issue affects the function sub_410DDC of the file switch_language.cgi of the component httpd. The manipulation of the argument Language leads to stack-based buffer …
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Critical 9.8
LuaJIT through 2.1 and OpenRusty luajit2 before v2.1-20240626 have a stack-buffer-overflow in lj_strfmt_wfnum in lj_str…
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Critical 9.8
D-Link DIR-632 HTTP POST Request get_pure_content stack-based overflow
A vulnerability, which was classified as critical, has been found in D-Link DIR-632 FW103B08. Affected by this issue is the function get_pure_content of the component HTTP POST Request Handler. The manipulation of the argument Content-Length leads to stack-ba…
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Critical 9.8
D-Link DIR-816 form2lansetup.cgi stack-based overflow
A vulnerability has been found in D-Link DIR-816 1.10CNB05 and classified as critical. This vulnerability affects unknown code of the file /goform/form2lansetup.cgi. The manipulation of the argument ip leads to stack-based buffer overflow. The attack can be i…
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Critical 9.8
D-Link DIR-816 QoSPortSetup stack-based overflow
A vulnerability was found in D-Link DIR-816 1.10CNB05. It has been declared as critical. This vulnerability affects the function QoSPortSetup of the file /goform/QoSPortSetup. The manipulation of the argument port0_group/port0_remarker/ssid0_group/ssid0_remar…
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Critical 9.8CVE-2025-5623 EPSS 20%
D-Link DIR-816 qosClassifier stack-based overflow
A vulnerability was found in D-Link DIR-816 1.10CNB05. It has been classified as critical. This affects the function qosClassifier of the file /goform/qosClassifier. The manipulation of the argument dip_address/sip_address leads to stack-based buffer overflow…
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Critical 9.8
D-Link DIR-816 wirelessApcli_5g stack-based overflow
A vulnerability was found in D-Link DIR-816 1.10CNB05 and classified as critical. Affected by this issue is the function wirelessApcli_5g of the file /goform/wirelessApcli_5g. The manipulation of the argument apcli_mode_5g/apcli_enc_5g/apcli_default_key_5g le…
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Critical 9.8
TOTOLINK EX1200T cstecgi.cgi setLanguageCfg stack-based overflow
A vulnerability, which was classified as critical, has been found in TOTOLINK EX1200T 4.1.2cu.5232_B20210713. This issue affects the function setLanguageCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument LangType leads to stack-based buffe…
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Critical 9.8
Apache NuttX RTOS: NuttX Bluetooth Stack HCI and UART DoS/RCE Vulnerabilities.
Improper Restriction of Operations within the Bounds of a Memory Buffer and Stack-based Buffer Overflow vulnerabilities were discovered in Apache NuttX RTOS Bluetooth Stack (HCI and UART components) that may result in system crash, denial of service, or arbit…
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Critical 9.8
MedDream PACS Server DICOM File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability
MedDream PACS Server DICOM File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of MedDream PACS Server. Authentication is not required to …
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Critical 9.8
MedDream PACS Server DICOM File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability
MedDream PACS Server DICOM File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of MedDream PACS Server. Authentication is not required to …
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Critical 9.8
MedDream PACS Server DICOM File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability
MedDream PACS Server DICOM File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of MedDream PACS Server. Authentication is not required to …
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Critical 9.8
MedDream PACS Server DICOM File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability
MedDream PACS Server DICOM File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of MedDream PACS Server. Authentication is not required to …
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Critical 9.8
Vertiv Liebert RDU101 and UNITY Stack-based Buffer Overflow
Affected Vertiv products contain a stack based buffer overflow vulnerability. An attacker could exploit this vulnerability to gain code execution on the device.