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CVE-2022-2586
It was discovered that a nft object or expression could reference a nft set on a different nft table, leading to a use-after-free once…
Medium5.3Known exploitedEPSS 10.2%
- Published
- Updated
- Reserved
- Assigned by
- canonical
Description
It was discovered that a nft object or expression could reference a nft set on a different nft table, leading to a use-after-free once that table was deleted.
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Linux Kernel Use-After-Free Vulnerability.
- Added
- 26 Jun 2024
- Fix due (US federal)
- 17 Jul 2024
- Used by ransomware
- Not known
Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| canonicalCNA (assigner) | 3.1 | Medium5.3 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H |
| NVDNVD · Analyzed | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 10.2% · top 4.3% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: no · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Weakness
Affected products
The Linux Kernel Organization · linux
- affected 3.16 – < 4.14.316
- affected 4.15 – < 4.19.256
- affected 4.20 – < 5.4.211
- affected 5.5 – < 5.10.137
- affected 5.11 – < 5.15.61
- affected 5.16 – < 5.18.18
- affected 5.19 – < 5.19.2
References (17)
- https://ubuntu.com/security/notices/USN-5564-1 (opens in a new tab)third-party-advisoryx_transferred
- https://ubuntu.com/security/notices/USN-5560-2 (opens in a new tab)third-party-advisoryx_transferred
- https://ubuntu.com/security/notices/USN-5582-1 (opens in a new tab)third-party-advisoryx_transferred
- https://ubuntu.com/security/notices/USN-5567-1 (opens in a new tab)third-party-advisoryx_transferred
- https://ubuntu.com/security/notices/USN-5560-1 (opens in a new tab)third-party-advisoryx_transferred
- https://ubuntu.com/security/notices/USN-5566-1 (opens in a new tab)third-party-advisoryx_transferred
- https://www.openwall.com/lists/oss-security/2022/08/09/5 (opens in a new tab)issue-trackingx_transferred
- https://ubuntu.com/security/notices/USN-5565-1 (opens in a new tab)third-party-advisoryx_transferred
- https://www.zerodayinitiative.com/advisories/ZDI-22-1118/ (opens in a new tab)issue-trackingx_transferred
- https://lore.kernel.org/netfilter-devel/[email protected]/T/#t (opens in a new tab)issue-trackingx_transferred
- https://ubuntu.com/security/notices/USN-5562-1 (opens in a new tab)third-party-advisoryx_transferred
- https://ubuntu.com/security/notices/USN-5557-1 (opens in a new tab)third-party-advisoryx_transferred
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2586 (opens in a new tab)issue-trackingx_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-2586 (opens in a new tab)government-resource
- https://www.vicarius.io/vsociety/posts/use-after-free-vulnerability-linked-chain-between-nft-tables-cve-2022-2586 (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-806742.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-2586)Record last updated .