VULNERABILITY INTELLIGENCE
CVE-2025-48172
CVSS score5.6 MEDIUM
EPSS probability0.18%
CISA KEVNot currently listed
Published2025-07-04
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
Description
CHMLib through 2bef8d0, as used in SumatraPDF and other products, has a chm_lib.c _chm_decompress_block integer overflow. There is a resultant heap-based buffer overflow in _chm_fetch_bytes.
Weakness classification
- cve@mitre.org: CWE-190