CVE-2025-4574 | Crossbeam-channel: crossbeam-channel vulnerable to double free on drop

In crossbeam-channel rust crate, the internal `Channel` type's `Drop` method has a race condition which could, in some circumstances, lead to a double-free that could result in memory corruption.

Published: 2025-05-13 Last update: 2026-04-15 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-4574 is rated Low Risk (37.5/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.14%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-4574

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-21 0.48% 0.14% -0.34%
2 2026-03-27 0.38% 0.48% +0.09%
3 2026-03-09 — 0.38% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-4574

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 3.9 2.5 [email protected]

Weakness enumeration for CVE-2025-4574

GitHub Security Advisory for CVE-2025-4574

GHSA-pg9f-39pc-qf8g · Severity: medium · Ecosystem: rust — crossbeam-channel Vulnerable to Double Free on Drop

OS Trackers for CVE-2025-4574

vendor priority summary link
debian unimportant CVE-2025-4574 unimportant priority: Debian including 1 source packages (rust-crossbeam-channel), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2025-4574
redhat medium — https://access.redhat.com/security/cve/CVE-2025-4574
suse medium CVE-2025-4574 severity moderate: SUSE including 120 source package names (2.2.0-4.54:iputils-20221126-slfo.1.1_2.1, 389-ds, …), 970 product×package rows across 76 product lines (Container suse/sl-micro/6.0/base-os-container, Container suse/sl-micro/6.0/toolbox, … (76 product lines)): Known Not Affected 923, Fixed 46, First Fixed 1. https://www.suse.com/security/cve/CVE-2025-4574/
ubuntu medium CVE-2025-4574 medium priority: Ubuntu including 1 source packages (rust-crossbeam-channel), 7 status rows across 7 suites (focal, jammy, noble, oracular, plucky, questing, upstream): needs-triage 3, ignored 2, not-affected 1, released 1. https://ubuntu.com/security/CVE-2025-4574

Affected software / configurations for CVE-2025-4574

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2025-4574

cvelogic Threat Intelligence