Heap-Based Buffer Overflow in vstakhov libucl Affects Software Security
CVE-2025-11010

4.8MEDIUM

Key Information:

Vendor

Vstakhov

Status
Libucl
Vendor
CVE Published:
26 September 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-11010?

A vulnerability exists in the vstakhov libucl library, specifically in the function ucl_include_common located in /src/ucl_util.c. This flaw can lead to a heap-based buffer overflow, requiring local access to exploit. Given that the exploit has been publicly disclosed, it is crucial for users of affected versions to assess their systems and implement appropriate mitigations.

Affected Version(s)

libucl 0.9.0

libucl 0.9.1

libucl 0.9.2

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.

CVE-2025-11010 - Proof of Concept

References

https://vuldb.com/?id.325953
vdb-entrytechnical-description
https://vuldb.com/?ctiid.325953
signaturepermissions-required
https://vuldb.com/?submit.654068
third-party-advisory

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

ahuo (VulDB User)
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