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VulnerabilityPublished Updated

CVE-2025-4432: ring · Unthrottled Resource Allocation

Affects ringSource GCVE Database

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Not known to be exploited · CVSS 5.3 Medium.

Data as of 5 Nov 2026, 16:33 UTC

CVSS 3.1 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.15.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 9 May 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
ringAffected
  • =0
Fixed in–

AI-suggested

The vendor advisory does not explicitly confirm the availability of a patch or fixed version. No specific mitigations are described in the advisory. Users should monitor the official Red Hat advisory and the Ring package release notes for updates and apply fixes once available.

Description

CVE-2025-4432 is a vulnerability in the Rust Ring package where a panic can be triggered when overflow checking is enabled. This issue affects the QUIC protocol implementation, allowing an attacker to cause a denial of service by sending a specially crafted packet. The panic is likely to occur unintentionally in approximately one out of every 2^32 packets sent or received. The vulnerability results in low availability impact without affecting confidentiality or integrity.

References

Community reviews

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