CVE-2025-6499 is a heap-based buffer overflow vulnerability affecting vstakhov libucl up to version 0.9.2, specifically within the ucl_parse_multiline_string function in src/ucl_parser.c. This vulnerability carries a CVSS score of 5.5 (Medium), indicating it can lead to a high impact on availability (A:H) but requires local access (AV:L) and low privileges (PR:L) to exploit. While the exploit has been publicly disclosed, there is no evidence of active exploitation, nor are there any known Metasploit, Nuclei, or ExploitDB modules, and community discussion and media coverage are minimal.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 0.9.2CPE matchmatch criteria | cpe:2.3:a:vstakhov:libucl:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
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
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.