VDB
CVE-2025-48172
CVE-2025-48172
PUBLISHED
CVSS 5.599999904632568 MEDIUM
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.
EPSS 0.15% · 5.1th percentile
Risk Scores
CVSS 3.1
5.599999904632568
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
EPSS Score
0.15%
5.1th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| CHMLib | CHMLib | 0 |
| chmlib | chmlib |
Timeline
- Jul 4, 2025 CVE Published
- Jul 4, 2025 Coalition ESS Score
- Jul 5, 2025 EPSS Score
- Jul 8, 2025 Coalition ESS Score
- Jul 8, 2025 CVE Updated
- Jul 9, 2025 Coalition ESS Score
- Jul 15, 2025 EPSS Score
- Jul 24, 2025 EPSS Score
- Aug 3, 2025 EPSS Score
- Aug 6, 2025 PoC Published
- Aug 13, 2025 EPSS Score
- Aug 14, 2025 PoC Published
References
- https://drive.google.com/file/d/1XpulFyCGlq7Szzg5RsH-eRwZ6OyuSozl/view?usp=sharing url
- https://drive.google.com/file/d/1wq51px42eoJz2VQ1Qu9ObPVQVom9T9H_/view?usp=sharing url
- https://github.com/jedwing/CHMLib/blob/2bef8d063ec7d88a8de6fd9f0513ea42ac0fa21f/src/chm_lib.c#L1386 url
- https://github.com/sumatrapdfreader/sumatrapdf/commit/08179946a745cf1605e4b9670942ec1a6e1f4c5d url
- https://nvd.nist.gov/vuln/detail/CVE-2025-48172 advisory