CVE-2025-55398
CRITICAL EPSS 26.4%
Published Aug 22, 202510mo ago · Modified Jun 17, 20262w ago
9.8 CVSS 3.1
Published Aug 22, 2025 10mo ago
Last Modified Jun 17, 2026 2w ago
Description
An issue was discovered in mouse07410 asn1c thru 0.9.29 (2025-03-20) - a fork of vlm asn1c. In UPER (Unaligned Packed Encoding Rules), asn1c-generated decoders fail to enforce INTEGER constraints when the bound is positive and exceeds 32 bits in length, potentially allowing incorrect or malicious input to be processed.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
26.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-1284
References 1
- github.com https://github.com/mouse07410/asn1c/issues/222
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.