Buffer Overflow Vulnerability in Squirrel Library Affecting Local Execution
CVE-2026-8258
4.8MEDIUM
Key Information:
Badges
👾 Exploit Exists🟡 Public PoC
What is CVE-2026-8258?
A vulnerability has been identified in the Squirrel library, particularly affecting versions up to 3.2. This flaw exists within the 'validate_format' function located in 'sqstdlib/sqstdstring.cpp'. An attacker with local access can manipulate this function, leading to a stack-based buffer overflow. Although the exploit has been publicly shared, the Squirrel development team has not yet addressed the reported issue.
Affected Version(s)
Squirrel 3.0
Squirrel 3.1
Squirrel 3.2
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.
References
CVSS V4
Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None
Timeline
- 🟡
Public PoC available
- 👾
Exploit known to exist
Vulnerability published
Vulnerability Reserved
Credit
biniam (VulDB User)
VulDB CNA Team