CVE-2026-19781

Ashlar-Vellum Cobalt VS File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Cobalt. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of VS files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28173.

• CWE-122

• https://www.zerodayinitiative.com/advisories/ZDI-26-587/

Published

Sep 15, 2026

Last Modified

Sep 15, 2026

Status

Received

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-19771A vulnerability was identified in Baicells EG3661M BaiCE_BQ6…7.2
• CVE-2026-19773libwebsockets HTTP/2 HPACK Path Header Parsing Out-Of-Bounds…9.8
• CVE-2026-19774BlueZ A2DP Stack-based Buffer Overflow Remote Code Execution…7.1
• CVE-2026-19778The WPMR Google Feed Manager for WooCommerce – Sell on Googl…6.5
• CVE-2026-1978A vulnerability was detected in kalyan02 NanoCMS up to 0.4. …7.5
• CVE-2026-19780Koha Eval Code Injection Remote Code Execution Vulnerability…8.8
• CVE-2026-19782The WPS Bidouille WordPress plugin before 1.33.5 does not ha…5.4
• CVE-2026-19783IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a …7.8
• CVE-2026-19784A flaw has been found in francoisjacquet RosarioSIS up to 12…4.3
• CVE-2026-19785A vulnerability has been found in francoisjacquet RosarioSIS…6.3
• CVE-2026-19786A vulnerability was found in francoisjacquet RosarioSIS up t…5.3
• CVE-2026-19787A vulnerability was determined in SourceCodester Air Cargo M…4.7