# net: openvswitch: validate transport header presence in set_ipv6_addr

CVE record · `CVE-2026-99088`

- **Identifiers:** `CVE-2026-99088`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 26 Oct 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 26 Oct 2026, 14:51 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `3fdbd1ce11e5c0d7cafbe44c942c5cad61113d7b to before 1efa6842e94aa70237446b31fbe2bc16586809c3` (git)
  - affected: `3fdbd1ce11e5c0d7cafbe44c942c5cad61113d7b to before ad4258db21e801a7aae614afca89a2e39283080d` (git)
  - affected: `3fdbd1ce11e5c0d7cafbe44c942c5cad61113d7b to before 54cb98ed23866205926298621e04169f50665b59` (git)
  - affected: `3fdbd1ce11e5c0d7cafbe44c942c5cad61113d7b to before b7b80d204abdc258006f9e17c92b363ab13bb599` (git)
  - affected: `3fdbd1ce11e5c0d7cafbe44c942c5cad61113d7b to before 6774af7cd17be8f0d0f70de3a749d381b4f2e9da` (git)
  - affected: `3fdbd1ce11e5c0d7cafbe44c942c5cad61113d7b to before 2594795fd832f0253826d64ff8976b8ff5fbfe9f` (git)
  - affected: `3fdbd1ce11e5c0d7cafbe44c942c5cad61113d7b to before 6b8897ba0733f88f0360ea48a970f373f9142de0` (git)
  - affected: `3fdbd1ce11e5c0d7cafbe44c942c5cad61113d7b to before 3c6a4b11330fe424557538a98fca9f0a4c5bf313` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `3.8`
  - unaffected: `before 3.8` (semver)
  - unaffected: `5.10.273 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.224 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.113 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.57 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.11 to 7.2.*, inclusive` (semver)
  - unaffected: `7.3 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0017, the 6th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 26 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-99088](https://www.cve.org/CVERecord?id=CVE-2026-99088)
- [NVD: CVE-2026-99088](https://nvd.nist.gov/vuln/detail/CVE-2026-99088)

### References from the CNA

- <https://git.kernel.org/stable/c/1efa6842e94aa70237446b31fbe2bc16586809c3>
- <https://git.kernel.org/stable/c/ad4258db21e801a7aae614afca89a2e39283080d>
- <https://git.kernel.org/stable/c/54cb98ed23866205926298621e04169f50665b59>
- <https://git.kernel.org/stable/c/b7b80d204abdc258006f9e17c92b363ab13bb599>
- <https://git.kernel.org/stable/c/6774af7cd17be8f0d0f70de3a749d381b4f2e9da>
- <https://git.kernel.org/stable/c/2594795fd832f0253826d64ff8976b8ff5fbfe9f>
- <https://git.kernel.org/stable/c/6b8897ba0733f88f0360ea48a970f373f9142de0>
- <https://git.kernel.org/stable/c/3c6a4b11330fe424557538a98fca9f0a4c5bf313>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-99088>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-99088/>. Everything for agents: <https://agentprime.io/llms.txt>.