CyberSecBulletin

Stack-based Buffer Overflow

CWE-121

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

We track 2,424 vulnerabilities of this type. 100% are rated high or critical, and the average CVSS score is 8.6. 20 have been exploited in real attacks.

How this weakness is prevented

  • 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 discusses canary-based detection in detail.
  • Architecture and Design: Use an abstraction library to abstract away risky APIs. Not a complete solution.
  • Implementation: Implement and perform bounds checking on input.
  • Implementation: Do not use dangerous functions such as gets. Use safer, equivalent functions which check for boundary errors.

Latest Stack-based Buffer Overflow vulnerabilities

  • 7.8 High severity

    Opensatkit: Stack-based Buffer Overflow

    CVE-2025-70083Opensatkit

    An issue was discovered in OpenSatKit 2.2.1. The DirName field in the telecommand is provided by the ground segment and must be treated as untrusted input. The program copies DirName into the local buffer DirWithSep using strcpy. The size of this buffer is OS_

  • 8.1 High severity

    QuTS hero: Buffer Copy without Checking Size of Input

    CVE-2025-48725QNAP

    A buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability

  • 7.3 High severity

    AMD Athlon™ 3000 Series Mobile Processors with…: Stack-based Buffer Overflow

    CVE-2025-29951AMD

    A buffer overflow in the AMD Secure Processor (ASP) bootloader could allow an attacker to overwrite memory, potentially resulting in privilege escalation and arbitrary code execution.

  • 7.8 High severity

    NX: Stack-based Buffer Overflow

    CVE-2026-22923Siemens

    A vulnerability has been identified in NX (All versions < V2512), NX (Managed Mode) (All versions < V2512). The affected application contains a data validation vulnerability that could allow an attacker with local access to interfere with internal data during

  • 9.8 Critical severity

    0852-1322: Stack-based Buffer Overflow

    CVE-2026-22904WAGO

    Improper length handling when parsing multiple cookie fields (including TRACKID) allows an unauthenticated remote attacker to send oversized cookie values and trigger a stack buffer overflow, resulting in a denial‑of‑service condition and possible remote code

  • 9.8 Critical severity

    0852-1322: Stack-based Buffer Overflow

    CVE-2026-22903WAGO

    An unauthenticated remote attacker can send a crafted HTTP request containing an overly long SESSIONID cookie. This can trigger a stack buffer overflow in the modified lighttpd server, causing it to crash and potentially enabling remote code execution due to m

  • 7.2 High severity

    AC9: Improper Restriction of Operations within the Bounds of a Memory Buffer

    CVE-2026-2192Tenda

    A security vulnerability has been detected in Tenda AC9 15.03.06.42_multi. Affected by this vulnerability is the function formGetRebootTimer. Such manipulation of the argument sys.schedulereboot.start_time/sys.schedulereboot.end_time leads to stack-based buffe

  • 7.2 High severity

    AC9: Improper Restriction of Operations within the Bounds of a Memory Buffer

    CVE-2026-2191Tenda

    A weakness has been identified in Tenda AC9 15.03.06.42_multi. Affected is the function formGetDdosDefenceList. This manipulation of the argument security.ddos.map causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been m

  • 8.8 High severity

    RX3: Improper Restriction of Operations within the Bounds of a Memory Buffer

    CVE-2026-2187Tenda

    A vulnerability was found in Tenda RX3 16.03.13.11. 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. It is possible to initiate the a

  • 8.8 High severity

    RX3: Improper Restriction of Operations within the Bounds of a Memory Buffer

    CVE-2026-2186Tenda

    A vulnerability has been found in Tenda RX3 16.03.13.11. Impacted is the function fromSetIpMacBind of the file /goform/SetIpMacBind. Such manipulation of the argument list leads to stack-based buffer overflow. The attack may be performed from remote. The explo

  • 8.8 High severity

    RX3: Improper Restriction of Operations within the Bounds of a Memory Buffer

    CVE-2026-2185Tenda

    A flaw has been found in Tenda RX3 16.03.13.11. This issue affects the function set_device_name of the file /goform/setBlackRule of the component MAC Filtering Configuration Endpoint. This manipulation of the argument devName/mac causes stack-based buffer over

  • 8.8 High severity

    RX3: Improper Restriction of Operations within the Bounds of a Memory Buffer

    CVE-2026-2181Tenda

    A security flaw has been discovered in Tenda RX3 16.03.13.11. Affected by this vulnerability is an unknown functionality of the file /goform/openSchedWifi. Performing a manipulation of the argument schedStartTime/schedEndTime results in stack-based buffer over

  • 8.8 High severity

    RX3: Improper Restriction of Operations within the Bounds of a Memory Buffer

    CVE-2026-2180Tenda

    A vulnerability was identified in Tenda RX3 16.03.13.11. Affected is an unknown function of the file /goform/fast_setting_wifi_set. Such manipulation of the argument ssid_5g leads to stack-based buffer overflow. The attack can be launched remotely. The exploit

  • 9.8 Critical severity

    W30AP: Out-of-bounds Write

    CVE-2026-2017Ip-comEPSS 4.8%

    A vulnerability was detected in IP-COM W30AP up to 1.0.0.11(1340). Affected by this issue is the function R7WebsSecurityHandler of the file /goform/wx3auth of the component POST Request Handler. The manipulation of the argument data results in stack-based buff

  • 7.8 High severity

    libfastcommon: Out-of-bounds Write

    CVE-2026-2016Happyfish100

    A security vulnerability has been detected in happyfish100 libfastcommon up to 1.0.84. Affected by this vulnerability is the function base64_decode of the file src/base64.c. The manipulation leads to stack-based buffer overflow. Local access is required to app

  • 7.8 High severity

    iccDEV: Improper Restriction of Operations within the Bounds of a Memory Buffer

    CVE-2026-25584InternationalColorConsortium

    iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. Prior to version 2.3.1.3, there is a stack-buffer-overflow vulnerability in CIccTagFloatNum<>::GetValues(). This is tri

  • 8.2 High severity

    Open5GS: Out-of-bounds Write

    CVE-2025-15555Open5GS

    A security flaw has been discovered in Open5GS up to 2.7.6. Affected by this vulnerability is the function hss_ogs_diam_cx_mar_cb of the file src/hss/hss-cx-path.c of the component VoLTE Cx-Test. The manipulation of the argument OGS_KEY_LEN results in stack-ba

  • 8.4 High severity

    3ds Max: Stack-based Buffer Overflow

    CVE-2026-0660Autodesk

    A maliciously crafted GIF file, when parsed through Autodesk 3ds Max, can cause a Stack-Based Buffer Overflow vulnerability. A malicious actor can leverage this vulnerability to execute arbitrary code in the context of the current process.

  • 7.8 High severity

    iccDEV: Stack-based Buffer Overflow

    CVE-2026-25502InternationalColorConsortium

    iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. Prior to version 2.3.1.2, stack-based buffer overflow in icFixXml() function when processing malformed ICC profiles, al

  • 9.8 Critical severity

    A950rg Firmware: Stack-based Buffer Overflow

    CVE-2025-67187TOTOLINK

    A stack-based buffer overflow vulnerability was identified in TOTOLINK A950RG V4.1.2cu.5204_B20210112. The flaw exists in the setIpQosRules interface of /lib/cste_modules/firewall.so where the comment parameter is not properly validated for length.

  • 8.6 High severity

    Red Hat Enterprise Linux 10: Stack-based Buffer Overflow

    CVE-2026-1761Red HatEPSS 1.06%

    A flaw was found in libsoup. This stack-based buffer overflow vulnerability occurs during the parsing of multipart HTTP responses due to an incorrect length calculation. A remote attacker can exploit this by sending a specially crafted multipart HTTP response,

  • 8.8 High severity

    AC21: Improper Restriction of Operations within the Bounds of a Memory Buffer

    CVE-2026-1637Tenda

    A vulnerability was identified in Tenda AC21 16.03.08.16. The affected element is the function fromAdvSetMacMtuWan of the file /goform/AdvSetMacMtuWan. The manipulation leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The ex

  • 7.5 High severity

    Monkey: Stack-based Buffer Overflow

    CVE-2025-63658Monkey-projectEPSS 1.29%

    A stack overflow in the mk_http_index_lookup function (mk_server/mk_http.c) of monkey commit f37e984 allows attackers to cause a Denial of Service (DoS) via sending a crafted HTTP request to the server.

  • 8.8 High severity

    VIGI C485 V1: Stack-based Buffer Overflow

    CVE-2026-1457TP-LinkEPSS 7.59%

    An authenticated buffer handling flaw in TP-Link VIGI C385 V1 Web API lacking input sanitization, may allow memory corruption leading to remote code execution. Authenticated attackers may trigger buffer overflow and potentially execute arbitrary code with elev

  • 7.1 High severity

    iSTAR Configuration Utility (ICU): Stack-based Buffer Overflow

    CVE-2025-26386Johnson Controls

    Johnson Controls iSTAR Configuration Utility (ICU) has Stack-based Buffer Overflow vulnerability. This issue affects iSTAR Configuration Utility (ICU) version 6.9.7 and prior. Successful exploitation of this vulnerability could result in failure within the ope

  • 9.8 Critical severity

    GnuPG: Stack-based Buffer Overflow

    CVE-2026-24881GnuPGEPSS 1.81%

    In GnuPG before 2.5.17, a crafted CMS (S/MIME) EnvelopedData message carrying an oversized wrapped session key can cause a stack-based buffer overflow in gpg-agent during PKDECRYPT--kem=CMS handling. This can easily be leveraged for denial of service; however,

  • 9.8 Critical severity

    suricata: Out-of-bounds Write

    CVE-2026-22262OISF

    Suricata is a network IDS, IPS and NSM engine. While saving a dataset a stack buffer is used to prepare the data. Prior to versions 8.0.3 and 7.0.14, if the data in the dataset is too large, this can result in a stack overflow. Versions 8.0.3 and 7.0.14 contai

  • 9.8 Critical severity

    xrdp: Out-of-bounds Write

    CVE-2025-68670NeutrinolabsEPSS 1.37%

    xrdp is an open source RDP server. xrdp before v0.10.5 contains an unauthenticated stack-based buffer overflow vulnerability. The issue stems from improper bounds checking when processing user domain information during the connection sequence. If exploited, th

  • 7.0 High severity

    Eclipse ThreadX - USBX: Out-of-bounds Write

    CVE-2025-55095Eclipse Foundation

    The function _ux_host_class_storage_media_mount() is responsible for mounting partitions on a USB mass storage device. When it encounters an extended partition entry in the partition table, it recursively calls itself to mount the next logical partition. This

  • 9.8 Critical severity

    8180 IP Audio Alerter: Out-of-bounds Write

    CVE-2026-0792ALGO

    ALGO 8180 IP Audio Alerter SIP INVITE Alert-Info Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of ALGO 8180 IP Audio Alerter devices. Authenticati

  • 9.8 Critical severity

    8180 IP Audio Alerter: Out-of-bounds Write

    CVE-2026-0791ALGO

    ALGO 8180 IP Audio Alerter SIP INVITE Replaces Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of ALGO 8180 IP Audio Alerter devices. Authentication

  • 9.8 Critical severity

    Ax3 Firmware: Stack-based Buffer Overflow

    CVE-2025-69764TendaEPSS 1.09%

    Tenda AX3 firmware v16.03.12.11 contains a stack-based buffer overflow in the formGetIptv function due to improper handling of the stbpvid stack buffer, which may result in memory corruption and remote code execution.

  • 8.8 High severity

    AX1803: Improper Restriction of Operations within the Bounds of a Memory Buffer

    CVE-2026-1329TendaEPSS 1.2%

    A flaw has been found in Tenda AX1803 1.0.0.1. The affected element is the function fromGetWifiGuestBasic of the file /goform/WifiGuestSet. Executing a manipulation of the argument guestWrlPwd/guestEn/guestSsid/hideSsid/guestSecurity can lead to stack-based bu

  • 9.8 Critical severity

    Ax3 Firmware: Stack-based Buffer Overflow

    CVE-2025-69766Tenda

    Tenda AX3 firmware v16.03.12.11 contains a stack-based buffer overflow in the formGetIptv function due to improper handling of the citytag stack buffer, which may result in memory corruption and remote code execution.

  • 9.8 Critical severity

    Ax3 Firmware: Stack-based Buffer Overflow

    CVE-2025-69763Tenda

    Tenda AX3 firmware v16.03.12.11 contains a stack overflow in formSetIptv via the vlanId parameter, which can cause memory corruption and enable remote code execution.

  • 9.8 Critical severity

    Ax3 Firmware: Stack-based Buffer Overflow

    CVE-2025-69762Tenda

    Tenda AX3 firmware v16.03.12.11 contains a stack overflow in formSetIptv via the list parameter, which can cause memory corruption and enable remote code execution.

  • 7.5 High severity

    Ax1803 Firmware: Stack-based Buffer Overflow

    CVE-2025-70648Tenda

    Tenda AX1803 v1.0.0.1 was discovered to contain a stack overflow in the security_5g parameter of the sub_727F4 function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

  • 7.5 High severity

    Ax1803 Firmware: Stack-based Buffer Overflow

    CVE-2025-70646Tenda

    Tenda AX1803 v1.0.0.1 was discovered to contain a stack overflow in the security parameter of the sub_72290 function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

  • 7.5 High severity

    Ax1806 Firmware: Stack-based Buffer Overflow

    CVE-2025-70644Tenda

    Tenda AX-1806 v1.0.0.1 was discovered to contain a stack overflow in the time parameter of the sub_60CFC function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

  • 7.5 High severity

    Ax1803 Firmware: Stack-based Buffer Overflow

    CVE-2025-70651Tenda

    Tenda AX-1803 v1.0.0.1 was discovered to contain a stack overflow in the ssid parameter of the form_fast_setting_wifi_set function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.