CVE-2024-26925 — netfilter: nf_tables: release mutex after nft_gc_seq_end from abort path
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: release mutex after nft_gc_seq_end from abort path The commit mutex should not be released during the critical section between nft_gc_seq_begin() and nft_gc_seq_end(), otherwise, async GC worker could collect expired objects and get the released commit lock within the same GC sequence. nf_tables_module_autoload() temporarily releases the mutex to load module dependencies, then it goes back to replay the transaction again. Move it at the end of the abort phase after nft_gc_seq_end() is called.
Who exploits it and how urgent it is
A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.
How the score was calculated
- EPSS 0.3% (30-day exploitation probability)+3
- Technical severity (medium)+3
The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.
CISA SSVC assessment CISA
Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.
Remediation
Fixes and mitigations documented by the sources — linked to the original advisory.
- Documented patch — git.kernel.org (NIST National Vulnerability Database)
- Documented patch — git.kernel.org (NIST National Vulnerability Database)
- Documented patch — git.kernel.org (NIST National Vulnerability Database)
- Documented patch — git.kernel.org (NIST National Vulnerability Database)
- Documented patch — git.kernel.org (NIST National Vulnerability Database)
- Documented patch — git.kernel.org (NIST National Vulnerability Database)
- Documented patch — git.kernel.org (NIST National Vulnerability Database)
First 24 hours
Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.
- Identify exposed assets running the affected vendor/product/version combinations (Debian Debian Linux, Linux Linux, Linux Linux Kernel).
- Apply the fixed version or the patch documented under Remediation.
- Search available logs for exploit probes, errors and authentication anomalies.
Affected scope
Vendor, product and versions as the sources word them.
| Vendor | Product | Versions | Status | Source |
|---|---|---|---|---|
| Debian | Debian Linux | version 10.0 | Vulnerable | NIST National Vulnerability Database |
| Linux | Linux |
≥ b44a459c6561595ed7c3679599c5279204132b33 and < eb769ff4e281f751adcaf4f4445cbf30817be139version 6.5≥ 6.4.13 and < 6.5≥ 4.19.316 and < 4.20≥ 6.1.56 and < 6.1.86≥ 5.15.134 and < 5.15.155≥ 5.10.198 and < 5.10.215≥ 5.4.262 and < 5.4.274 and 8 moreversion e07e68823116563bdbc49cef185cda6f463bc534version f85ca36090cbb252bcbc95fc74c2853fc792694f≥ 720344340fb9be2765bbaab7b292ece0a4570eae and < 0d459e2ffb541841714839e8228b845458ed3b27≥ 720344340fb9be2765bbaab7b292ece0a4570eae and < a34ba4bdeec0c3b629160497594908dc820110f1≥ 720344340fb9be2765bbaab7b292ece0a4570eae and < 8038ee3c3e5b59bcd78467686db5270c68544e30≥ 5d319f7a81431c6bb32eb4dc7d7975f99e2c8c66 and < 8d3a58af50e46167b6f1db47adadad03c0045dae≥ 23292bdfda5f04e704a843b8f97b0eb95ace1ca6 and < 2cee2ff7f8cce12a63a0a23ffe27f08d99541494≥ 4b6346dc1edfb9839d6edee7360ed31a22fa6c95 and < 61ac7284346c32f9a8c8ceac56102f7914060428 |
Vulnerable | CVE Program (cve.org) e CISA ADP |
| Linux | Linux Kernel |
version 6.9-rc2version 6.9-rc1version 6.5≥ 6.7 and < 6.8.5≥ 6.5.1 and < 6.6.26≥ 6.4.13 and < 6.5≥ 6.1.56 and < 6.1.86≥ 5.15.134 and < 5.15.155 and 3 more≥ 5.10.198 and < 5.10.215≥ 5.4.262 and < 5.4.274≥ 4.19.316 and < 4.20 |
Vulnerable | NIST National Vulnerability Database |
Attack characteristics
The CVSS vector, decoded. It describes the attack, not your exposure to it.
Every base score collected
Sources score independently and may disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Scored by |
|---|---|---|---|---|---|
| 7.8 | CVSS 3.1 | High | 1.8 | 5.9 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 via NIST National Vulnerability Database |
| 7.8 | CVSS 3.1 | High | — | — | Linux via CVE Program (cve.org) e CISA ADP |
| 5.5 | CVSS 3.1 | Medium | 1.8 | 3.6 | nvd@nist.gov via NIST National Vulnerability Database |
| 5.5 | CVSS 3.1 | Medium | — | — | GitHub, Inc. via GitHub Security Advisories |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H (score shown at the top: nvd@nist.gov) Weakness MITRE
Weakness class according to MITRE’s CWE catalog.
Detection
Read off the CVSS vector and the weakness class. Starting points, not tested rules.
- Local/physical vector: focus on endpoint telemetry (EDR) from affected hosts.
Timeline
What happened to this CVE, newest first.
- 2026
- Affected products added · linux/linux
- SSVC assessment updated
- Record published
- Fix documented
- Affected products added · linux/linux kernel, debian/debian linux
- CVSS changed · 5.5
- Source status changed · → Modified
- Record created in this database
- 2024
- CVE published
Source activity
Repeated readings are counted rather than listed.
- 2× References added · Oct 14, 2026 – Oct 14, 2026
- 1× Official description updated · Oct 14, 2026 – Oct 14, 2026
References
14 on the record
- git.kernel.org/stable/c/0d459e2ffb541841714839e8228b845458ed3b27
- git.kernel.org/stable/c/eb769ff4e281f751adcaf4f4445cbf30817be139
- git.kernel.org/stable/c/61ac7284346c32f9a8c8ceac56102f7914060428
- git.kernel.org/stable/c/8d3a58af50e46167b6f1db47adadad03c0045dae
- git.kernel.org/stable/c/2cee2ff7f8cce12a63a0a23ffe27f08d99541494
- git.kernel.org/stable/c/8038ee3c3e5b59bcd78467686db5270c68544e30
- git.kernel.org/stable/c/a34ba4bdeec0c3b629160497594908dc820110f1
- lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- cert-portal.siemens.com/productcert/html/ssa-354112.html
- www.openwall.com/lists/oss-security/2024/05/08/2
- www.openwall.com/lists/oss-security/2024/05/07/6
- github.com/advisories/GHSA-77mf-44mv-3m36
- cert-portal.siemens.com/productcert/html/ssa-265688.html
- nvd.nist.gov/vuln/detail/CVE-2024-26925
Elsewhere on this site
Related CVEs (same products)
- Critical CVE-2026-99999 ipv4: validate checksum_start before completing checksum 12h
- Unknown CVE-2026-98432 ipv4: free inet_opt and ireq_opt after an RCU grace period 12h
- Unknown CVE-2026-98431 RDMA/uverbs: Fix mmap_lock/disassociation_lock circular dependency 1d
- Unknown CVE-2026-98430 RDMA/efa: Keep admin queues alive while IRQ is registered 1d
- Unknown CVE-2026-98429 RDMA/efa: Keep EQ resources alive while IRQ is registered 1d
- Unknown CVE-2026-98428 ALSA: usb: 6fire: Avoid embedded URBs 1d
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.
Answered from this record
Text assembled only from the fields above — no additional claims.
What should defenders know first?
CVE-2024-26925 is "netfilter: nf_tables: release mutex after nft_gc_seq_end from abort path", rated Medium. It affects Debian Linux (Debian); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 5.5 describes technical severity. EPSS 0.27% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.
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