CVE-2025-4432
A panic may be triggered when overflow checking is enabled.
Does this matter?
Lower severity and a low EPSS score (1.03%). Track it; it rarely justifies an emergency change on its own.
Description
A flaw was found in Rust's Ring package. A panic may be triggered when overflow checking is enabled. In the QUIC protocol, this flaw allows an attacker to induce this panic by sending a specially crafted packet. It will likely occur unintentionally in 1 out of every 2**32 packets sent or received.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- EPSS
- 1.03% probability · 63th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-770
- Source
- secalert@redhat.com
EPSS 1.0% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://access.redhat.com/security/cve/CVE-2025-4432
- https://bugzilla.redhat.com/show_bug.cgi?id=2350655
- https://github.com/advisories/GHSA-4p46-pwfr-66x6
- https://github.com/briansmith/ring
- https://github.com/briansmith/ring/blob/main/RELEASES.md#version-01712-2025-03-05
- https://github.com/briansmith/ring/commit/ec2d3cf1d91f148c84e4806b4f0b3c98f6df3b38
- https://github.com/briansmith/ring/pull/2447
- https://rustsec.org/advisories/RUSTSEC-2025-0009.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.