CVE-2026-53212
CSIRTS triage
- What
- A high severity use-after-free vulnerability exists in the netfilter nft_tunnel component.
- Who is affected
- Deployments using the netfilter nft_tunnel are affected.
- Urgency
- Remediation is important due to the high severity of the vulnerability.
- Action
- Update to the latest version to fix this issue.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
Advisory coverage (1)
- highCVE-2026-53212: netfilter: nft_tunnel: fix use-after-free on object destroymsrc · 2026-06-09
External references
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[](https://www.csirts.com/cve/CVE-2026-53212)