Skip to content
OpenAdvisories

Weakness (CWE)

CWE-121: Stack-based Buffer Overflow

Variant Draft

The product writes past the end of a buffer that was allocated on the stack.

How to prevent it (5 mitigations)
  1. 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.

  2. Architecture and Design

    Use an abstraction library to abstract away risky APIs. Not a complete solution.

  3. Implementation

    Implement and perform bounds checking on input.

  4. Implementation

    Do not use dangerous functions such as gets. Use safer, equivalent functions which check for boundary errors.

  5. 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

  • High 8.8

    Tenda F453 Parameters Natlimit fromNatlimit stack-based overflow

    A vulnerability was identified in Tenda F453 1.0.0.3. Impacted is the function fromNatlimit of the file /goform/Natlimit of the component Parameters Handler. The manipulation of the argument page leads to stack-based buffer overflow. It is possible to initiat…

  • High 8.8

    Tenda F453 Parameters VirtualSer fromVirtualSer memory corruption

    A vulnerability was determined in Tenda F453 1.0.0.3. This issue affects the function fromVirtualSer of the file /goform/VirtualSer of the component Parameters Handler. Executing a manipulation of the argument page can lead to stack-based buffer overflow. The…

  • High 8.8

    Tenda F453 Parameters SafeClientFilter fromSafeClientFilter memory corruption

    A vulnerability was found in Tenda F453 1.0.0.3. This vulnerability affects the function fromSafeClientFilter of the file /goform/SafeClientFilter of the component Parameters Handler. Performing a manipulation of the argument menufacturer/Go results in stack-…

  • High 8.8

    Tenda FH451 WrlclientSet stack-based overflow

    A vulnerability has been found in Tenda FH451 1.0.0.9. This vulnerability affects the function WrlclientSet of the file /goform/WrlclientSet. Such manipulation of the argument GO leads to stack-based buffer overflow. The attack can be launched remotely. The e…

  • High 8.8

    Tenda FH451 WrlExtraSet formWrlExtraSet stack-based overflow

    A flaw has been found in Tenda FH451 1.0.0.9. This affects the function formWrlExtraSet of the file /goform/WrlExtraSet. This manipulation of the argument GO causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been publis…

  • High 8.8

    D-Link DHP-1320 SOAP redirect_count_down_page stack-based overflow

    A vulnerability was identified in D-Link DHP-1320 1.00WWB04. This affects the function redirect_count_down_page of the component SOAP Handler. Such manipulation leads to stack-based buffer overflow. The attack can be executed remotely. The exploit is publicly…

  • High 7.3
    CVE-2026-33147 Public exploit

    GMT: Stack-based Buffer Overflow in gmt_remote_dataset_id

    GMT is an open source collection of command-line tools for manipulating geographic and Cartesian data sets. In versions from 6.6.0 and prior, a stack-based buffer overflow vulnerability was identified in the gmt_remote_dataset_id function within src/gmt_remot…

  • High 8.8

    Tenda A18 Pro MAC Filtering Configuration Endpoint setMacFilterCfg sub_423B50 stack-based overflow

    A vulnerability was determined in Tenda A18 Pro 02.03.02.28. The impacted element is the function sub_423B50 of the file /goform/setMacFilterCfg of the component MAC Filtering Configuration Endpoint. Executing a manipulation of the argument deviceList can lea…

  • High 8.8

    Tenda A18 Pro formSetQosBand set_qosMib_list stack-based overflow

    A vulnerability was found in Tenda A18 Pro 02.03.02.28. The affected element is the function set_qosMib_list of the file /goform/formSetQosBand. Performing a manipulation of the argument list results in stack-based buffer overflow. The attack is possible to b…

  • High 8.8

    Tenda A18 Pro SetIpMacBind fromSetIpMacBind stack-based overflow

    A vulnerability has been found in Tenda A18 Pro 02.03.02.28. Impacted is the function fromSetIpMacBind of the file /goform/SetIpMacBind. Such manipulation of the argument list leads to stack-based buffer overflow. The attack can be executed remotely. The expl…

  • High 8.8

    Tenda A18 Pro openSchedWifi setSchedWifi stack-based overflow

    A flaw has been found in Tenda A18 Pro 02.03.02.28. This issue affects the function setSchedWifi of the file /goform/openSchedWifi. This manipulation causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been publi…

  • High 7.7

    Buffer Overflow in Network Probe Handling Function of TP-Link Archer AX53 + Archer AX55

    This vulnerability in AX53 v1, AX55 v4 and AX55 v4.6 results from insufficient input sanitization in the device’s probe handling logic, where unvalidated parameters can trigger a stack-based buffer overflow that causes the affected service to crash and, under…

  • Low 2.7

    Media Streaming Add-on

    A buffer overflow vulnerability has been reported to affect Media Streaming Add-On. The remote attackers can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following version: Media Streaming …

  • High 8.8

    Tenda A18 Pro fast_setting_wifi_set form_fast_setting_wifi_set stack-based overflow

    A vulnerability was detected in Tenda A18 Pro 02.03.02.28. This vulnerability affects the function form_fast_setting_wifi_set of the file /goform/fast_setting_wifi_set. The manipulation results in stack-based buffer overflow. The attack may be launched remote…

  • High 8.8

    D-Link DIR-513 Web Service formEasySetPassword stack-based overflow

    A vulnerability was found in D-Link DIR-513 1.10. This affects the function formEasySetPassword of the file /goform/formEasySetPassword of the component Web Service. The manipulation of the argument curTime results in stack-based buffer overflow. The attack m…

  • High 8.8
    CVE-2026-4444 Public exploit

    Stack buffer overflow in WebRTC in Google Chrome prior to 146.0.7680.153 allowed a remote attacker to potentially explo…

  • Critical 9.5

    OpenWrt Project has a Stack-based Buffer Overflow vulnerability via IPv6 reverse DNS lookup

    OpenWrt Project is a Linux operating system targeting embedded devices. In versions prior to 24.10.6 and 25.12.1, the mdns daemon has a Stack-based Buffer Overflow vulnerability in the match_ipv6_addresses function, triggered when processing PTR queries for I…

  • Critical 9.5

    OpenWrt Project has Stack-based Buffer Overflow in DNS PTR Query

    OpenWrt Project is a Linux operating system targeting embedded devices. In versions prior to 24.10.6 and 25.12.1, the mdns daemon has a Stack-based Buffer Overflow vulnerability in the parse_question function. The issue is triggered by PTR queries for reverse…

  • Low 2.2

    Stack buffer overflow in PKCS7 SignedData encoding with custom signed attributes

    A stack buffer overflow vulnerability exists in wolfSSL's PKCS7 SignedData encoding functionality. In wc_PKCS7_BuildSignedAttributes(), when adding custom signed attributes, the code passes an incorrect capacity value (esd->signedAttribsCount) to EncodeAttrib…

  • High 7.3
    CVE-2025-69720 Public exploit

    The infocmp command-line tool in ncurses before 6.5-20251213 has a stack-based buffer overflow in analyze_string in pro…

  • Medium 6.5
    CVE-2026-32743 Public exploit

    PX4 Autopilot: Stack-based Buffer Overflow via Oversized Path Input in MAVLink Log Request Handling

    PX4 is an open-source autopilot stack for drones and unmanned vehicles. Versions 1.17.0-rc2 and below are vulnerable to Stack-based Buffer Overflow through the MavlinkLogHandler, and are triggered via MAVLink log request. The LogEntry.filepath buffer is 60 by…

  • High 7.1

    HTSlib CRAM decoder vulnerable to buffer overflow

    HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which stores DNA sequence alignment data using a variety of encodings and compression methods. When reading data encoded using the `BYTE_ARRAY_LEN` method, th…

  • High 8.8

    HTSlib CRAM decoder vulnerable to buffer overflow

    HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which stores DNA sequence alignment data using a variety of encodings and compression methods. For the `VARINT` and `CONST` encodings, incomplete validation o…

  • Medium 5.3

    Stack-Based Buffer Overflow in CLI Login Username Handling over CLI

    A stack-based buffer overflow in the device's Telnet/SSH CLI login routine occurs when a unauthenticated attacker send an oversized or unexpected username input. An overflow condition crashes the thread handling the login attempt, forcing the session to close…

  • Medium 6.5

    Stack-Based Buffer Overflow in TFTP File-Transfer Command Handling over CLI

    A stack-based buffer overflow in the CLI's TFTP file‑transfer command handling allows a low-privileged attacker with Telnet/SSH access to trigger memory corruption by supplying unexpected or oversized filename input. Exploitation results in the corruption of …

  • Medium 4.9

    Stack-Based Buffer Overflow in File Install Parameter Handling

    A stack-based buffer overflow in the device's file installation workflow allows a high-privileged attacker to send oversized POST parameters that overflow a fixed-size stack buffer within an internal process, resulting in a DoS attack.

  • Medium 4.9

    Stack-Based Buffer Overflow in File Transfer Parameter Handling

    A stack-based buffer overflow vulnerability in the device's file transfer parameter workflow allows a high-privileged attacker to send oversized POST parameters, causing memory corruption in an internal process, resulting in a DoS attack.

  • Medium 6.5

    Buffer Overflow using TFTP Filename

    A remote attacker with user privileges for the webUI can use the setting of the TFTP Filename with a POST Request to trigger a stack-based Buffer Overflow, resulting in a DoS attack.

  • Medium 4.9

    Wazuh has Stack-Based Buffer Overflow in Security Configuration Assessment JSON Parser

    Wazuh is a free and open source platform used for threat prevention, detection, and response. Starting in version 3.9.0 and prior to version 4.14.3, multiple stack-based buffer overflows exist in the Security Configuration Assessment (SCA) decoder (`wazuh-ana…

  • Medium 4.9

    Wazuh Database Synchronization Vulnerable to Stack-based Buffer Overflow via snprintf Integer Underflow

    Wazuh is a free and open source platform used for threat prevention, detection, and response. Starting in version 4.4.0 and prior to version 4.14.3, a stack-based buffer overflow vulnerability exists in the Wazuh Database synchronization module (`wdb_delta_ev…

  • Critical 9.8

    Tenda AC8 HTTP Endpoint SysToolChangePwd doSystemCmd stack-based overflow

    A weakness has been identified in Tenda AC8 up to 16.03.50.11. This vulnerability affects the function doSystemCmd of the file /goform/SysToolChangePwd of the component HTTP Endpoint. This manipulation of the argument local_2c causes stack-based buffer overfl…

  • High 8.8

    LB-LINK BL-WR9000 get_virtual_cfg sub_44E8D0 stack-based overflow

    A weakness has been identified in LB-LINK BL-WR9000 2.4.9. The affected element is the function sub_44E8D0 of the file /goform/get_virtual_cfg. Executing a manipulation can lead to stack-based buffer overflow. The attack may be performed from remote. The expl…

  • High 8.8

    D-Link DNS-1550-04 app_mgr.cgi UPnP_AV_Server_Path_Setting stack-based overflow

    A flaw has been found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. This iss…

  • High 8.8

    D-Link DNS-1550-04 gui_mgr.cgi cgi_myfavorite_verify stack-based overflow

    A vulnerability was detected in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. T…

  • High 8.8

    D-Link DNS-1550-04 download_mgr.cgi Downloads_Schedule_Info stack-based overflow

    A security vulnerability has been detected in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up …

  • High 8.8

    D-Link DNS-1550-04 local_backup_mgr.cgi Local_Backup_Info stack-based overflow

    A weakness has been identified in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205.…

  • High 8.8

    D-Link DIR-619L boa formSchedule stack-based overflow

    A security flaw has been discovered in D-Link DIR-619L 2.06B01. The affected element is the function formSchedule of the file /goform/formSchedule of the component boa. Performing a manipulation of the argument curTime results in stack-based buffer overflow. …

  • Medium 6.3

    GPAC MP4Box swf_parse.c swf_def_bits_jpeg stack-based overflow

    A vulnerability was found in GPAC up to 2.5-DEV-rev2167-gcc9d617c0-master. This vulnerability affects the function swf_def_bits_jpeg of the file src/scene_manager/swf_parse.c of the component MP4Box. The manipulation of the argument szName results in stack-ba…

  • Critical 9.8

    D-Link DIR-816 goahead form2Wl5BasicSetup.cgi stack-based overflow

    A vulnerability was detected in D-Link DIR-816 1.10CNB05. Affected by this vulnerability is an unknown functionality of the file /goform/form2Wl5BasicSetup.cgi of the component goahead. Performing a manipulation of the argument pskValue results in stack-based…

  • Critical 9.8

    D-Link DIR-816 goahead form2WlanBasicSetup.cgi stack-based overflow

    A security vulnerability has been detected in D-Link DIR-816 1.10CNB05. Affected is an unknown function of the file /goform/form2WlanBasicSetup.cgi of the component goahead. Such manipulation of the argument pskValue leads to stack-based buffer overflow. The …