Out-of-Bounds Read Vulnerability in Ashlar-Vellum Cobalt XE File Parsing
CVE-2025-7997

7.8HIGH

Key Information:

Vendor

Ashlar-vellum

Status
Cobalt
Vendor
CVE Published:
17 September 2025

What is CVE-2025-7997?

The vulnerability identified in Ashlar-Vellum Cobalt XE pertains to a flaw in the parsing of XE files, allowing for out-of-bounds reads due to insufficient validation of user-supplied data. This weakness enables remote attackers to execute arbitrary code on affected installations, with the requirement of user interaction, such as visiting a malicious webpage or opening a compromised file. By exploiting this vulnerability, an attacker can potentially execute harmful code in the context of the current process.

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Affected Version(s)

Cobalt 12 SP1

References

https://www.zerodayinitiative.com/advisories/ZDI-25-719/
x_research-advisory

CVSS V3.0

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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