CVE-2022-39190 — An issue was discovered in net/netfilter/nf_tables_api
An issue was discovered in net/netfilter/nf_tables_api.c in the Linux kernel before 5.19.6. A denial of service can occur upon binding to an already bound chain.
Published
2022-09-02T05:15:07.737
Last modified
2026-10-14T18:17:04.640
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
01What is this vulnerability?
An issue was discovered in net/netfilter/nf_tables_api.c in the Linux kernel before 5.19.6. A denial of service can occur upon binding to an already bound chain.
02Affected products
No structured affected-product list available — see references below for vendor advisories.
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2022-09-02T05:15:07.737
- Last modified: 2026-10-14T18:17:04.640
09References
- cdn.kernel.org — https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.6
- github.com — https://github.com/torvalds/linux/commit/e02f0d3970404bfea385b6edb86f2d936db0ea2…
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
- lore.kernel.org — https://lore.kernel.org/all/20220824220330.64283-12-pablo%40netfilter.org/
- twitter.com — https://twitter.com/pr0Ln
- cdn.kernel.org — https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.6
- github.com — https://github.com/torvalds/linux/commit/e02f0d3970404bfea385b6edb86f2d936db0ea2…
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
- lore.kernel.org — https://lore.kernel.org/all/20220824220330.64283-12-pablo%40netfilter.org/
- twitter.com — https://twitter.com/pr0Ln
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