CVE-2025-55398

Critical

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.

SeverityCritical
CVSS9.8
Exploit probability—
ProductMouse07410 Asn1c
PublishedAug 22, 2025
First seenAug 22, 2025
Weakness typeCWE-1284CWE-1284

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
mouse07410 asn1cv ≤ 0.9.29—

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