CVE-2025-48172
July 4, 2025, 1:15 p.m.
5.6
Medium
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.
Product(s) Impacted
| Vendor | Product | Versions |
|---|---|---|
| Chmlib |
|
|
| Sumatrapdf |
|
|
Weaknesses
Common security weaknesses mapped to this vulnerability.
CWE-190
Integer Overflow or Wraparound
The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control.
*CPE(s)
Affected systems and software identified for this CVE.
| Type | Vendor | Product | Version | Update | Edition | Language | Software Edition | Target Software | Target Hardware | Other Information |
|---|---|---|---|---|---|---|---|---|---|---|
| a | chmlib | chmlib | / | / | / | / | / | / | / | / |
| a | sumatrapdf | sumatrapdf | / | / | / | / | / | / | / | / |
References
Tags
CVSS Score
CVSS Data - 3.1
- Attack Vector: LOCAL
- Attack Complexity: HIGH
- Privileges Required: NONE
- Scope: CHANGED
- Confidentiality Impact: LOW
- Integrity Impact: LOW
- Availability Impact: LOW
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
Timeline
Published: July 4, 2025, 1:15 p.m.
Last Modified: July 4, 2025, 1:15 p.m.
Last Modified: July 4, 2025, 1:15 p.m.
Status : Received
CVE has been recently published to the CVE List and has been received by the NVD.
More infoSource
cve@mitre.org
*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.