CVE-2026-43060
CVE-2026-43060 is a high-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- EPSS exploit prediction: 0% (2nd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-27354
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_ct: drop pending enqueued packets on removal Packets sitting in nfqueue might hold a reference to: - templates that specify the conntrack zone, because a percpu area is used and module removal is possible. - conntrack timeout policies and helper, where object removal leave a stale reference. Since these objects can just go away, drop enqueued packets to avoid stale reference to them. If there is a need for finer grain removal, this logic can be revisited to make selective packet drop upon dependencies.
Frequently asked questions
- What is CVE-2026-43060?
- In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_ct: drop pending enqueued packets on removal Packets sitting in nfqueue might hold a reference to: - templates that specify the conntrack zone, because a percpu area is used and module removal is possible. - conntrack timeout policies and helper, where object removal leave a stale reference. Since these objects can just go away, drop enqueued packets to avoid stale reference to them. If there is a need for finer grain removal, this logic can be revisited to make selective packet drop upon dependencies.
- How severe is CVE-2026-43060?
- CVE-2026-43060 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-43060 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-43060?
- CVE-2026-43060 primarily affects Linux Linux Kernel. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2026-43060?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-43060 have an EU (EUVD) identifier?
- Yes. CVE-2026-43060 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27354.
- When was CVE-2026-43060 published?
- CVE-2026-43060 was published on 2026-05-05 and last updated on 2026-06-17.
References
- https://git.kernel.org/stable/c/36eae0956f659e48d5366d9b083d9417f3263ddc
- https://git.kernel.org/stable/c/3da0b946835f33bf36b459ead764c61a761e689b
- https://git.kernel.org/stable/c/6802ff8beceb9c4254318e81c1395720438f2cc2
- https://git.kernel.org/stable/c/77da55dee67720e2b8d2db49a53334e6c017ee7b
- https://git.kernel.org/stable/c/8a64e76933672b08bd85b63086f33432070fd729
- https://git.kernel.org/stable/c/ab50302190b303f847c4eba0e31a01a56dec596e
- https://git.kernel.org/stable/c/e68a8db3a0546482b34e9ca5ca886bcf73eb37bb
- https://git.kernel.org/stable/c/f29a055e4f593e577805b41228b142b58f48df1b
Affected products (5)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
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