CWE-121

Stack-based Buffer Overflow

A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

CVE-2026-6239 (GCVE-0-2026-6239)

Vulnerability from cvelistv5 – Published: 2026-06-05 23:50 – Updated: 2026-06-05 23:50
VLAI
Title
Authenticated Stack-based Buffer Overflow in ONVIF CreateUsers Service in TP-Link Tao C520WS
Summary
A stack‑based buffer overflow vulnerability exists in Tapo C520WS v2 in the ONVIF CreateUsers service, where the device fails to properly validate the number of XML user nodes during request processing. An authenticated attacker can send a specially crafted ONVIF request containing an excessive number of user entries to trigger memory corruption. Successful exploitation may cause the ONVIF management service to terminate unexpectedly, resulting in a denial‑of‑service (DoS) condition that disrupts device configuration and management functions.
CWE
  • CWE-121 - Stack-based buffer overflow
Assigner
Impacted products
Vendor Product Version
TP-Link Systems Inc. Tapo C520WS v2 Affected: 0 , < 1.2.6 Build 260528 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-6240 (GCVE-0-2026-6240)

Vulnerability from cvelistv5 – Published: 2026-06-05 23:51 – Updated: 2026-06-05 23:51
VLAI
Title
Authenticated Stack-based Buffer Overflow in ONVIF DeleteUsers Service on TP-Link Tapo C520WS
Summary
A stack-based buffer overflow vulnerability exists in Tapo C520WS v2 in the ONVIF DeleteUsers service, due to insufficient boundary checks when handling multiple user deletion parameters. An authenticated attacker can send a crafted malicious request containing an excessive number of identifiers to overflow stack memory. Successful exploitation may result in a service crash or deadlock, leading to DoS affecting device management and monitoring functionality.
CWE
  • CWE-121 - Stack-based buffer overflow
Assigner
Impacted products
Vendor Product Version
TP-Link Systems Inc. Tapo C520WS v2 Affected: 0 , < 1.2.6 Build 260528 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-6350 (GCVE-0-2026-6350)

Vulnerability from cvelistv5 – Published: 2026-04-16 02:30 – Updated: 2026-04-16 13:16
VLAI
Title
Openfind|MailGates/MailAudit - Stack-based Buffer Overflow
Summary
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.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-121 - Stack-based buffer overflow
Assigner
References
Impacted products
Vendor Product Version
Openfind MailGates Affected: 6.0 , < 6.1.10.054 (custom)
Affected: 5.0 , < 5.2.10.099 (custom)
Create a notification for this product.
Openfind MailAudit Affected: 6.0 , < 6.1.10.054 (custom)
Affected: 5.0 , < 5.2.10.099 (custom)
Create a notification for this product.
Date Public
2026-04-16 02:26
Show details on NVD website

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CVE-2026-6537 (GCVE-0-2026-6537)

Vulnerability from cvelistv5 – Published: 2026-04-30 05:37 – Updated: 2026-04-30 12:49
VLAI
Title
Stack-based Buffer Overflow in Wireshark
Summary
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
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
Impacted products
Vendor Product Version
Wireshark Foundation Wireshark Affected: 4.6.0 , < 4.6.5 (semver)
Affected: 4.4.0 , < 4.4.15 (semver)
Create a notification for this product.
Credits
Duc Anh Nguyen
Show details on NVD website

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CVE-2026-6538 (GCVE-0-2026-6538)

Vulnerability from cvelistv5 – Published: 2026-04-30 05:38 – Updated: 2026-04-30 12:50
VLAI
Title
Stack-based Buffer Overflow in Wireshark
Summary
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
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
Impacted products
Vendor Product Version
Wireshark Foundation Wireshark Affected: 4.6.0 , < 4.6.5 (semver)
Affected: 4.4.0 , < 4.4.15 (semver)
Create a notification for this product.
Credits
Sharon Brizinov
Show details on NVD website

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CVE-2026-6637 (GCVE-0-2026-6637)

Vulnerability from cvelistv5 – Published: 2026-05-14 13:00 – Updated: 2026-05-15 03:56
VLAI
Title
PostgreSQL refint allows stack buffer overflow and SQL injection
Summary
Stack buffer overflow in PostgreSQL module "refint" allows an unprivileged database user to execute arbitrary code as the operating system user running the database. A distinct attack is possible if the application declares a user-controlled column as a "refint" cascade primary key and facilitates user-controlled updates to that column. In that case, a SQL injection allows a primary key update value provider to execute arbitrary SQL as the database user performing the primary key update. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-121 - Stack-based Buffer Overflow
  • CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Assigner
Impacted products
Vendor Product Version
n/a PostgreSQL Affected: 18 , < 18.4 (rpm)
Affected: 17 , < 17.10 (rpm)
Affected: 16 , < 16.14 (rpm)
Affected: 15 , < 15.18 (rpm)
Affected: 0 , < 14.23 (rpm)
Credits
The PostgreSQL project thanks Nikolay Samokhvalov for reporting this problem.
Show details on NVD website

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CVE-2026-6643 (GCVE-0-2026-6643)

Vulnerability from cvelistv5 – Published: 2026-04-20 06:34 – Updated: 2026-04-20 13:46
VLAI
Title
A stack-based buffer overflow vulnerability in the VPN Clients on the ADM
Summary
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 authenticated remote attacker can exploit these to execute arbitrary code as the web server user. Affected products and versions include: from ADM 4.1.0 through ADM 4.3.3.RR42 as well as from ADM 5.0.0 through ADM 5.1.2.REO1.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-121 - Stack-based buffer overflow
Assigner
References
Impacted products
Vendor Product Version
ASUSTOR Inc. ADM Affected: 4.1.0 , ≤ 4.3.3.RR42 (custom)
Affected: 5.0.0 , ≤ 5.1.2.REO1 (custom)
Create a notification for this product.
Credits
YU-XIANG HUANG (mlgzackfly)
Show details on NVD website

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CVE-2026-6665 (GCVE-0-2026-6665)

Vulnerability from cvelistv5 – Published: 2026-05-09 00:43 – Updated: 2026-05-12 03:55
VLAI
Title
PgBouncer buffer overflow in SCRAM
Summary
The SCRAM code in PgBouncer before 1.25.2 did not check the return value of strlcat() correctly when building the contents of the SCRAM client-final-message. A malicious backend that sends a SCRAM server-final-message with a long nonce can trigger a stack overflow.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
Impacted products
Vendor Product Version
n/a PgBouncer Affected: 0 , < 1.25.2 (semver)
Credits
Thanks to HarutoKimura for finding and reporting this problem.
Show details on NVD website

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CVE-2026-6868 (GCVE-0-2026-6868)

Vulnerability from cvelistv5 – Published: 2026-04-30 05:04 – Updated: 2026-04-30 15:20
VLAI
Title
Stack-based Buffer Overflow in Wireshark
Summary
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
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
Impacted products
Vendor Product Version
Wireshark Foundation Wireshark Affected: 4.6.0 , < 4.6.5 (semver)
Affected: 4.4.0 , < 4.4.15 (semver)
Create a notification for this product.
Credits
Sharon Brizinov
Show details on NVD website

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CVE-2026-7034 (GCVE-0-2026-7034)

Vulnerability from cvelistv5 – Published: 2026-04-26 11:00 – Updated: 2026-04-27 12:47
VLAI
Title
Tenda FH1202 httpd WrlExtraSet stack-based overflow
Summary
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 may be initiated remotely. The exploit has been made public and could be used.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Tenda FH1202 Affected: 1.2.0.14(408)
    cpe:2.3:o:tenda:fh1202_firmware:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
LtzHuster (VulDB User)
Show details on NVD website

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Mitigation ID: MIT-10

Phases: Operation, Build and Compilation

Strategy: Environment Hardening

Description:

  • 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.
Mitigation

Phase: Architecture and Design

Description:

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

Phase: Implementation

Description:

  • Implement and perform bounds checking on input.
Mitigation

Phase: Implementation

Description:

  • Do not use dangerous functions such as gets. Use safer, equivalent functions which check for boundary errors.
Mitigation ID: MIT-11

Phases: Operation, Build and Compilation

Strategy: Environment Hardening

Description:

  • 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].

No CAPEC attack patterns related to this CWE.

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