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  4. CVE 2024 26643 netfilter nftables mark set as dead when
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Back to active CVEs
High · CVSS 7.8CVE-2024-26643

netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeoutCVE-2024-26643

Answer in brief

CVE-2024-26643 records a High severity (CVSS 7.8) vulnerability in netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeout. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Mar 21, 2024Updated Oct 15, 2026Source checked Nov 4, 2026First seen by HOL Aug 5, 2026Material review Oct 15, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.8
Exploitation
Not marked as known exploited
Affected software
6 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.

Affected products and reported versions
ProductAffected versionsFixed versions
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*Not reportedNot reported
Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=8da1b048f9a501d3d7d38c188ba09d7d0d5b8c27 <d75a589bb92af1abf3b779cfcd1977ca11b27033 || >=bbdb3b65aa91aa0a32b212f27780b28987f2d94f <edcf1a3f182ecf8b6b805f0ce90570ea98c5f6bf || >=448be0774882f95a74fa5eb7519761152add601b <e2d45f467096e931044f0ab7634499879d851a5c || >=d19e8bf3ea4114dd21fc35da21f398203d7f7df1 <291cca35818bd52a407bc37ab45a15816039e363 || >=ea3eb9f2192e4fc33b795673e56c97a21987f868 <406b0241d0eb598a0b330ab20ae325537d8d8163 || >=5f68718b34a531a556f2f50300ead2862278da26 <b2d6f9a5b1cf968f1eaa71085ceeb09c2cb276b1 || >=5f68718b34a531a556f2f50300ead2862278da26 <5224afbc30c3ca9ba23e752f0f138729b2c48dd8 || >=5f68718b34a531a556f2f50300ead2862278da26 <552705a3650bbf46a22b1adedc1b04181490fc36 || 0624f190b5742a1527cd938295caa8dc5281d4cd || >=5.4.262 <5.4.274 || >=5.10.198 <5.10.215 || >=5.15.134 <5.15.154 || >=6.1.56 <6.1.84 || >=6.4.11 <6.5d75a589bb92af1abf3b779cfcd1977ca11b27033, edcf1a3f182ecf8b6b805f0ce90570ea98c5f6bf, e2d45f467096e931044f0ab7634499879d851a5c, 291cca35818bd52a407bc37ab45a15816039e363, 406b0241d0eb598a0b330ab20ae325537d8d8163, b2d6f9a5b1cf968f1eaa71085ceeb09c2cb276b1, 5224afbc30c3ca9ba23e752f0f138729b2c48dd8, 552705a3650bbf46a22b1adedc1b04181490fc36, 5.4.274, 5.10.215, 5.15.154, 6.1.84, 6.5
Linux/Linuxgeneric6.5Not reported
Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric>=0 <**
Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric>=0 <V1.1.1V1.1.1

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux, Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem.
  2. 2Review the reported fix. Update Linux/Linux to d75a589bb92af1abf3b779cfcd1977ca11b27033; Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem to *; Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem to V1.1.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Mar 21, 2024

    Evidence: source:cvelist:source_dates:source-dates:record
  2. Source modified

    Oct 15, 2026

    Evidence: source:cvelist:source_dates:source-dates:record
  3. First seen by HOL

    Aug 5, 2026

Sources and claim methodology

  • Source referencecert-portal.siemens.com
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencelists.debian.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeout While the rhashtable set gc runs asynchronously, a race allows it to collect elements from anonymous sets with timeouts while it is being released from the commit path. Mingi Cho originally reported this issue in a different path in 6.1.x with a pipapo set with low timeouts which is not possible upstream since 7395dfacfff6 ("netfilter: nf_tables: use timestamp to check for set element timeout"). Fix this by setting on the dead flag for anonymous sets to skip async gc in this case. According to 08e4c8c5919f ("netfilter: nf_tables: mark newset as dead on transaction abort"), Florian plans to accelerate abort path by releasing objects via workqueue, therefore, this sets on the dead flag for abort path too.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-667
Source
CVE List V5
Source checked
Nov 4, 2026
References
10 linked sources
Open source record