# netfilter: nf_conntrack_sip: fix OOB read in sip_skip_whitespace()

CVE record · `CVE-2026-98077`

- **Identifiers:** `CVE-2026-98077`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 25 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 25 Sept 2026, 10:24 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: `ea45f12a2766dae54e5426a23e8f4bafdbe2782e to before 9ae0a87e6f513293677fe286729fbae34d592215` (git)
  - affected: `ea45f12a2766dae54e5426a23e8f4bafdbe2782e to before b6277622b7323000895b674321c9a1f060553188` (git)
  - affected: `ea45f12a2766dae54e5426a23e8f4bafdbe2782e to before 0cfb96a118c5c6d46d7a1cfdfa18355ad734ca79` (git)
  - affected: `ea45f12a2766dae54e5426a23e8f4bafdbe2782e to before c6beb08b1a9fdb96795816d8329ed75dd785d48e` (git)
  - affected: `ea45f12a2766dae54e5426a23e8f4bafdbe2782e to before 60c012b2d05e1558b0f30ea3f15a2c3ca2f24d94` (git)
  - affected: `ea45f12a2766dae54e5426a23e8f4bafdbe2782e to before 4be8380e3af008f418f97992c06f23be649a430d` (git)
  - affected: `ea45f12a2766dae54e5426a23e8f4bafdbe2782e to before 4a30aa2ba007db18210dd52219ecbd5528c03523` (git)
  - affected: `ea45f12a2766dae54e5426a23e8f4bafdbe2782e to before e8f8231824b5815f57ce62cba116e511b10196de` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `2.6.26`
  - unaffected: `before 2.6.26` (semver)
  - unaffected: `5.10.271 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.222 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.189 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.111 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.53 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.7 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:** 0.0022, the 12th percentile, on 11 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 25 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98077](https://www.cve.org/CVERecord?id=CVE-2026-98077)
- [NVD: CVE-2026-98077](https://nvd.nist.gov/vuln/detail/CVE-2026-98077)

### References from the CNA

- <https://git.kernel.org/stable/c/9ae0a87e6f513293677fe286729fbae34d592215>
- <https://git.kernel.org/stable/c/b6277622b7323000895b674321c9a1f060553188>
- <https://git.kernel.org/stable/c/0cfb96a118c5c6d46d7a1cfdfa18355ad734ca79>
- <https://git.kernel.org/stable/c/c6beb08b1a9fdb96795816d8329ed75dd785d48e>
- <https://git.kernel.org/stable/c/60c012b2d05e1558b0f30ea3f15a2c3ca2f24d94>
- <https://git.kernel.org/stable/c/4be8380e3af008f418f97992c06f23be649a430d>
- <https://git.kernel.org/stable/c/4a30aa2ba007db18210dd52219ecbd5528c03523>
- <https://git.kernel.org/stable/c/e8f8231824b5815f57ce62cba116e511b10196de>

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-2026-98077>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98077/>. Everything for agents: <https://agentprime.io/llms.txt>.