CVE-2025-55398 Integer overflow in n/a
asn1c-generated decoders fail to enforce INTEGER constraints for large bounds, potentially allowing malicious input to cause crashes or code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-55398?
CVE-2025-55398 is a critical vulnerability in n/a, published on 22 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-1284
Which versions are affected by CVE-2025-55398?
How do I fix CVE-2025-55398?
No fix has been published for CVE-2025-55398 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-55398 being exploited?
There is no known exploitation of CVE-2025-55398 in the wild and no public exploit code.
Sources
Also known as GHSA-6v99-57j9-cq4w.