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
2,641 results · Clear filters · Feed
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High 7.8
RT-Thread SWM341 CAN SWM341.h CAN_Receive stack-based overflow
A security flaw has been discovered in RT-Thread up to 5.0.2. Affected by this issue is the function CAN_Receive in the library bsp/synwit/libraries/SWM341_CSL/CMSIS/DeviceSupport/SWM341.h of the component SWM341 CAN Handler. Performing a manipulation results…
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High 7.8
RT-Thread ls1c CAN ls1c_can.h recvmsg stack-based overflow
A vulnerability was identified in RT-Thread up to 5.0.2. Affected by this vulnerability is the function recvmsg in the library bsp/loongson/ls1cdev/libraries/ls1c_can.h of the component ls1c CAN Handler. Such manipulation leads to stack-based buffer overflow.…
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High 7.6
FatFs Stack Buffer Overflow via Uncapped exFAT Label Length
FatFs R0.16 and earlier contains a stack overflow bug in f_getlabel() because exFAT label length (XDIR_NumLabel) is trusted without enforcing spec maximums. This maps to CWE-121 (Stack-based Buffer Overflow). Estimated CVSS v3.1 vector: CVSS:3.1/AV:P/AC:L/PR:…
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High 7.5
Buffer Overflow vulnerability in UTT nv518G nv518GV3v3.2.7-210919-161313 allows a remote attacker to cause a denial of …
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High 8.8
Edimax EW-7478APC POST Request formPPPoESetup stack-based overflow
A vulnerability was found in Edimax EW-7478APC 1.04. Affected is the function formPPPoESetup of the file /goform/formPPPoESetup of the component POST Request Handler. Performing a manipulation of the argument pppUserName results in stack-based buffer overflow…
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High 8.8
Edimax EW-7478APC POST Request formL2TPSetup stack-based overflow
A vulnerability has been found in Edimax EW-7478APC 1.04. This impacts the function formL2TPSetup of the file /goform/formL2TPSetup of the component POST Request Handler. Such manipulation of the argument L2TPUserName leads to stack-based buffer overflow. It …
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High 8.8
Wavlink WL-NU516U1-A POST Parameter wireless.cgi sub_407504 stack-based overflow
A vulnerability was identified in Wavlink WL-NU516U1-A M16U1_V240425. The impacted element is the function sub_407504 of the file /cgi-bin/wireless.cgi of the component POST Parameter Handler. Such manipulation of the argument Guest_ssid leads to stack-based …
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High 8.8
Tenda JD12L NatStaticSetting fromNatStaticSetting stack-based overflow
A vulnerability was found in Tenda JD12L 16.03.53.23. This impacts the function fromNatStaticSetting of the file /goform/NatStaticSetting. The manipulation of the argument page results in stack-based buffer overflow. The attack can be executed remotely. The e…
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High 8.8
Tenda JD12L addressNat fromAddressNat stack-based overflow
A vulnerability has been found in Tenda JD12L 16.03.53.23. This affects the function fromAddressNat of the file /goform/addressNat. The manipulation of the argument page leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The …
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High 8.8
Tenda JD12L WifiBasicSet formWifiBasicSet stack-based overflow
A flaw has been found in Tenda JD12L 16.03.53.23. The impacted element is the function formWifiBasicSet of the file /goform/WifiBasicSet. Executing a manipulation of the argument security_5g can lead to stack-based buffer overflow. The attack may be launched …
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High 8.8
Tenda JD12L WifiGuestSet fromSetWifiGusetBasic stack-based overflow
A vulnerability was detected in Tenda JD12L 16.03.53.23. The affected element is the function fromSetWifiGusetBasic of the file /goform/WifiGuestSet. Performing a manipulation of the argument shareSpeed results in stack-based buffer overflow. The attack may b…
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High 8.8
Tenda JD12L SetPptpServerCfg formSetPPTPServer stack-based overflow
A security vulnerability has been detected in Tenda JD12L 16.03.53.23. Impacted is the function formSetPPTPServer of the file /goform/SetPptpServerCfg. Such manipulation of the argument startIp leads to stack-based buffer overflow. The attack can be launched …
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High 8.8CVE-2026-56766 Public exploit
Hydra - Stack Buffer Overflow in NTLM Authentication Handler
Hydra through 9.7, fixed in commit 9cc84c2, contains a stack buffer overflow in NTLM authentication across SMTP, POP3, IMAP, NNTP, HTTP, HTTP-Proxy, and HTTP-Proxy-Urlenum modules when processing malicious NTLM Type-2 challenges. A malicious server can send a…
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High 7.8
netfilter: nft_ct: bail out on template ct in get eval
In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_ct: bail out on template ct in get eval I noticed this issue while looking at a historic syzbot report [1]. A rule like the one below is enough to trigger the bug: table ip t {…
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High 7.5
A buffer overflow in the gf_media_import function (/media_tools/av_parsers.c) of GPAC Project/MP4Box before 26.02.0 all…
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High 7.7
radvdump's Route Information Option Parser has a Stack Buffer Overflow
radvd is a router advertisement daemon for IPv6. Prior to version 2.21, the `radvdump` utility shipped with radvd contains a stack buffer overflow in the Route Information option parser. When processing a crafted ICMPv6 Router Advertisement, `print_ff()` copi…
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High 8.8
Stack Buffer Overflow in rxi/microtar raw_to_header() via non-null-terminated TAR name field
A stack-based buffer overflow exists in the raw_to_header function in src/microtar.c in rxi microtar 0.1.0. The function copies the 100-byte name and linkname fields of a TAR header with strcpy without guaranteeing null termination of the source.
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High 8.6
A stack-based buffer overflow vulnerability has been found in the NPort W2150A-W4/W2250A-W4 Series version 1.5 and earl…
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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 -
High 8.0
Yealink SIP-T46U Web FastCGI Service bttest mod_webd.BlueToothTest stack-based overflow
A vulnerability was determined in Yealink SIP-T46U 108.86.0.118. Affected is the function mod_webd.BlueToothTest of the file /api/inner/bttest of the component Web FastCGI Service. Executing a manipulation of the argument btMac/pin/reserved can lead to stack-…
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High 8.0
Yealink SIP-T46U Firmware Chunk Upload upgrade sprintf stack-based overflow
A vulnerability was found in Yealink SIP-T46U 108.86.0.118. This impacts the function sprintf of the file /api/upgrade/upgrade of the component Firmware Chunk Upload Handler. Performing a manipulation of the argument uid/start_offset results in stack-based bu…
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High 8.0
Yealink SIP-T46U Firmware Chunk Upload handler accupgradebychunk mod_upgrade.SparePartsUpload stack-based overflow
A vulnerability has been found in Yealink SIP-T46U 108.86.0.118. This affects the function mod_upgrade.SparePartsUpload of the file /api/upgrade/accupgradebychunk of the component Firmware Chunk Upload handler. Such manipulation of the argument uid leads to s…
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High 8.0
Yealink SIP-T46U Web FastCGI Service beforewifitest StartReportInformation stack-based overflow
A vulnerability was detected in Yealink SIP-T46U 108.87.50.1. The affected element is the function StartReportInformation of the file /api/inner/beforewifitest of the component Web FastCGI Service. The manipulation of the argument port results in stack-based …
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High 7.3
Ritlabs TinyWeb Server Header libeay32.dll.html stack-based overflow
A security vulnerability has been detected in Ritlabs TinyWeb Server up to 1.94 on Win32. This impacts an unknown function in the library libeay32.dll.html of the component Header Handler. The manipulation of the argument Authorization leads to stack-based bu…
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High 8.8
Stack buffer overflow in SCTP error cause parsing in inet_drv allows remote VM crash
Stack-based Buffer Overflow vulnerability in Erlang OTP erts (inet_drv) allows an unauthenticated remote attacker to crash the BEAM VM by sending a crafted SCTP ERROR chunk. The sctp_parse_error_chunk function in erts/emulator/drivers/common/inet_drv.c parses…
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High 8.7
Stack buffer overflows in SimpleBLE
SimpleBLE is a cross-platform library and bindings for Bluetooth Low Energy (BLE). Prior to version 0.14.0, there are multiple stack-based buffer overflow vulnerabilities in SimpleBLE. There is a stack overflow vulnerability in the dongl backend’s Protocol::s…
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High 7.8
Acrobat Reader | Stack-based Buffer Overflow (CWE-121)
Acrobat Reader versions 24.001.30365, 26.001.21651 and earlier are affected by a Stack-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction i…
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High 7.8
InCopy | Stack-based Buffer Overflow (CWE-121)
InCopy versions 21.3, 20.5.3 and earlier are affected by a Stack-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must o…
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High 7.8
InDesign Desktop | Stack-based Buffer Overflow (CWE-121)
InDesign Desktop versions 21.3, 20.5.3 and earlier are affected by a Stack-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a vic…
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High 7.8
InDesign Desktop | Stack-based Buffer Overflow (CWE-121)
InDesign Desktop versions 21.3, 20.5.3 and earlier are affected by a Stack-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a vic…
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High 7.8
InDesign Desktop | Stack-based Buffer Overflow (CWE-121)
InDesign Desktop versions 21.3, 20.5.3 and earlier are affected by a Stack-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a vic…
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High 8.8
Windows DHCP Client Elevation of Privilege Vulnerability
Stack-based buffer overflow in Windows DHCP Client allows an unauthorized attacker to elevate privileges over an adjacent network.
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High 8.4
Microsoft Office Remote Code Execution Vulnerability
Integer underflow (wrap or wraparound) in Microsoft Office allows an unauthorized attacker to execute code locally.
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High 8.8
Windows Active Directory Domain Services Remote Code Execution Vulnerability
Stack-based buffer overflow in Active Directory Domain Services allows an authorized attacker to execute code over a network.
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High 7.5
A stack buffer overflow in the filein_process function (in_file.c) of GPAC MP4Box v2.4 allows attackers to cause a Deni…
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High 7.5
Shenzhen Tenda Technology Co., Ltd Tenda W20E v15.11.0.6 was discovered to contain a buffer overflow in the picCropName…
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High 7.5
Shenzhen Tenda Technology Co., Ltd Tenda W20E v15.11.0.6 was discovered to contain a buffer overflow in the webAuthUser…
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High 7.5
Shenzhen Tenda Technology Co., Ltd Tenda W3 Wireless Router v1.0.0.3(2204) was discovered to contain a stack overflow i…
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High 7.5
Shenzhen Tenda Technology Co., Ltd Tenda W3 Wireless Router v1.0.0.3(2204) was discovered to contain a stack overflow i…
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High 7.5
Shenzhen Tenda Technology Co., Ltd Tenda O3 Wireless Router v1.0.0.5(4180) was discovered to contain multiple stack ove…