CVE-2025-6499

LOW EPSS 11.6%
Published Jun 23, 20251y ago · Modified Jun 17, 20261w ago
1.9 CVSS 4.0
Low
Find Similar
Published Jun 23, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

A vulnerability classified as problematic was found in vstakhov libucl up to 0.9.2. Affected by this vulnerability is the function ucl_parse_multiline_string of the file src/ucl_parser.c. The manipulation leads to heap-based buffer overflow. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used.

CVSS Details

Base Score
1.9
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
11.6% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 3

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer Memory Safety
CWE-122
CWE-787 Out-of-bounds Write Memory Safety

Affected Products 1

VendorProductVersionRange
vstakhovlibucl* ≤0.9.2

References 5

  • github.com https://github.com/user-attachments/files/19825399/libucl_crash.txt
    Exploit
  • github.com https://github.com/vstakhov/libucl/issues/319
    ExploitIssue Tracking
  • vuldb.com https://vuldb.com/?ctiid.313615
    Permissions RequiredVDB Entry
  • vuldb.com https://vuldb.com/?id.313615
    Third Party AdvisoryVDB Entry
  • vuldb.com https://vuldb.com/?submit.601011
    Third Party AdvisoryVDB Entry

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.