The vulnerability of the ucl_parse_multiline_string() function in the src/ucl_parser.c file of the UCL Libucl library allows a attacker to cause a service failure.
🗓️ 05 Oct 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 5 Views
| Reporter | Title | Published | Views | Family All 13 |
|---|---|---|---|---|
 | CVE-2025-6499 | 23 Jun 202502:46 | – | circl |
 | libucl 安全漏洞 | 23 Jun 202500:00 | – | cnnvd |
 | CVE-2025-6499 | 23 Jun 202502:00 | – | cve |
 | CVE-2025-6499 vstakhov libucl ucl_parser.c ucl_parse_multiline_string heap-based overflow | 23 Jun 202502:00 | – | cvelist |
 | EUVD-2025-28741 | 3 Oct 202520:07 | – | euvd |
 | CVE-2025-6499 | 23 Jun 202502:00 | – | mend |
 | CVE-2025-6499 | 23 Jun 202503:15 | – | nvd |
 | PT-2025-26577 | 23 Jun 202500:00 | – | ptsecurity |
 | CVE-2025-6499: Heap-based Buffer Overflow | 23 Jun 202500:00 | – | rapid7 |
 | CVE-2025-6499 | 23 Jun 202504:24 | – | redhatcve |
10
Data
Build on a solid foundation with Vulners data
We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data
Api
Power your application with Vulners API
The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access
App
Assess and manage vulnerabilities with Vulners tools
Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation
05 Oct 2026 00:00Current
6.3Medium risk
Vulners AI Score6.3
CVSS 24.6
CVSS 35.5
EPSS0.00259