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VulnerabilityPublished Updated

CVE-2025-4574: crossbeam-channel · Double Free

Affects crossbeam-channelSource GCVE Database

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Not known to be exploited · CVSS 6.5 Medium.

Data as of 5 Nov 2026, 16:32 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.16.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 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
crossbeam-channelAffected
  • =0.5.12
Fixed in–

AI-suggested

No mitigation or patch currently meets Red Hat's criteria for deployment and stability. Users should monitor Red Hat advisories for updates. Until a fix is available, no specific mitigation is recommended by Red Hat.

Description

CVE-2025-4574 is a vulnerability in the crossbeam-channel Rust crate where a race condition in the internal Channel type's Drop method can cause a double-free, potentially leading to memory corruption. This flaw can result in integrity and availability impacts such as program crashes or memory corruption. The vulnerability has a CVSS v3.1 base score of 6.5 (medium severity). No official patch or mitigation is currently available that meets Red Hat's criteria for ease of use and deployment.

References

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