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CVE-2025-4574· NVD / CVE Program· CNA redhat

Crossbeam-channel: crossbeam-channel vulnerable to double free on drop

Noroxi assessment

Priority: Monitor (action score 26/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.56% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • Fixed version: github.com/crossbeam-rs/crossbeam crossbeam-channel 0.5.15; azl3 kata-containers 3.15.0.aks0-2 on Azure Linux 3.0 3.18.0.kata0-1; azl3 kata-containers-cc 3.15.0.aks0-12 on Azure Linux 3.0 3.15.0.aks0-14.

Low priority for now. Upgrade to github.com/crossbeam-rs/crossbeam crossbeam-channel 0.5.15; azl3 kata-containers 3.15.0.aks0-2 on Azure Linux 3.0 3.18.0.kata0-1; azl3 kata-containers-cc 3.15.0.aks0-12 on Azure Linux 3.0 3.15.0.aks0-14 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

MediumCVSS 6.5 · v3.1—No exploit Fix available
Published
May 13, 2025
Updated
Jun 30, 2026
EPSS
0.5% · 45th percentile

Report tools

JSON

Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · redhat
6.5
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2025-4574

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • github.com/crossbeam-rs/crossbeam crossbeam-channel

    • 0.5.12 and later · before 0.5.15affected · semver

  • Red Hat Red Hat Directory Server 11

    • all versionsunknown

  • Red Hat Red Hat Directory Server 12

    • all versionsunknown

  • Red Hat Red Hat Enterprise Linux 10

    • all versionsaffected
    • all versionsaffected
    • all versionsunknown
    • all versionsaffected
    • all versionsaffected
    • all versionsaffected
    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 7

    • all versionsaffected
    • all versionsunknown

  • Red Hat Red Hat Enterprise Linux 8

    • all versionsunknown
    • all versionsunknown
    • all versionsaffected
    • all versionsunknown
    • all versionsunknown
    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 9

    • all versionsaffected
    • all versionsaffected
    • all versionsunknown
    • all versionsunknown
    • all versionsaffected
    • all versionsaffected
    • all versionsaffected
    • all versionsaffected
    • all versionsaffected

  • Red Hat Red Hat OpenShift AI (RHOAI)

    • all versionsaffected
    • all versionsaffected

  • Red Hat Red Hat OpenShift Container Platform 4

    • all versionsaffected
    • all versionsunknown
    • all versionsaffected
    • all versionsunknown
    • all versionsunknown

  • Red Hat Red Hat Satellite 6

    • all versionsaffected
    • all versionsaffected

  • Red Hat Red Hat Trusted Artifact Signer

    • all versionsaffected
    • all versionsaffected

  • Red Hat Red Hat Trusted Profile Analyzer

    • all versionsaffected
    • all versionsunknown

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
crates.iocrossbeam-channelfrom 0.5.12 · before 0.5.150.5.15
crates.iocrossbeam-channelfrom 0.5.12-0 · before 0.5.150.5.15
Debian:13rust-crossbeam-channelbefore 0.5.15-10.5.15-1
openSUSE:Leap 15.6python-maturinbefore 1.4.0-150600.3.6.11.4.0-150600.3.6.1
openSUSE:Leap 16.0cargo-cbefore 0.10.15-160000.1.10.10.15-160000.1.1
openSUSE:Leap 16.0gstreamer-devtoolsbefore 1.26.7-160000.2.11.26.7-160000.2.1
openSUSE:Tumbleweedcargo-auditbefore 0.21.2~git0.18e58c2-2.10.21.2~git0.18e58c2-2.1
openSUSE:Tumbleweedcargo-cbefore 0.10.3~git0.ee7d7ef-4.10.10.3~git0.ee7d7ef-4.1
openSUSE:Tumbleweedpython-ruffbefore 0.16.10-1.10.16.10-1.1
SUSE:Linux Enterprise Server 16.0cargo-cbefore 0.10.15-160000.1.10.10.15-160000.1.1
SUSE:Linux Enterprise Server 16.0gstreamer-devtoolsbefore 1.26.7-160000.2.11.26.7-160000.2.1

Same product

red hat: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-86345389-ds-base: 389-ds-base: starttls plaintext-buffer retention allows on-path attacker to forge an ldap client's authentication result
    36Monitor
  • CVE-2026-86344389-ds-base: 389-ds-base: unauthenticated worker-thread-pool exhaustion via completed-operation-then-incomplete-pdu connection requeue
    30Monitor
  • CVE-2026-19404389-ds-base: 389-ds-base: missing authorization allows anonymous clients to start or abort cleanallruv replication maintenance
    26Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2025-3416Apr 8, 2025 · Rust-openssl: rust-openssl use-after-free in `md::fetch` and `cipher::fetch`
    14Monitor
  • Later →CVE-2026-11792Jun 9, 2026 · 389-ds-base: 389-ds-base: heap buffer overflow in audit log password masking (create_masked_entry_string)
    13Monitor
  • Later →CVE-2026-11884Jun 10, 2026 · 389-ds-base: 389-ds-base: heap buffer overflow in schema objectclass serialization due to missing oc_superior in size calculation
    26Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
github.com/crossbeam-rs/crossbeam crossbeam-channel0.5.15Vendor (CNA)
azl3 kata-containers 3.15.0.aks0-2 on Azure Linux 3.03.18.0.kata0-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 kata-containers-cc 3.15.0.aks0-12 on Azure Linux 3.03.15.0.aks0-14 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 rust 1.75.0-16 on Azure Linux 3.01.75.0-16 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 rust 1.86.0-3 on Azure Linux 3.01.86.0-3 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 azl-compliance 1.0.2-2 on CBL Mariner 2.01.0.2-2 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 azl-compliance 1.0.2-2 on CBL-Mariner 2.01.0.2-2 · CBL-Mariner ReleasesMicrosoft (MSRC)
crates.io:crossbeam-channel0.5.15Package registry (OSV)
debian:rust-crossbeam-channel0.5.15-1 · Debian:13Package registry (OSV)
opensuse:cargo-audit0.21.2~git0.18e58c2-2.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:cargo-c0.10.3~git0.ee7d7ef-4.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:gstreamer-devtools1.26.7-160000.2.1 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:python-maturin1.4.0-150600.3.6.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:python-ruff0.16.10-1.1 · openSUSE:TumbleweedPackage registry (OSV)
suse:cargo-c0.10.15-160000.1.1 · SUSE:Linux Enterprise Server 16.0Package registry (OSV)
suse:gstreamer-devtools1.26.7-160000.2.1 · SUSE:Linux Enterprise Server 16.0Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-18663456 days apart389-ds-base: 389-ds-base: pre-authentication double-free in get_ldapmessage_controls_ext() via critical session tracking control
    23Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
low · data or configuration can be modified
Availability
low · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
Low
Availability impact
Low

Weakness class (CWE)

CWE-415 · Double Free

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (3 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records