# ACPICA: validate byte_count in acpi_ps_get_next_package_length()

CVE record · `CVE-2026-97453`

- **Identifiers:** `CVE-2026-97453`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 24 Sept 2026
- **Updated:** 3 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 24 Sept 2026, 16:04 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: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 6b9904fc65d82bea4922a33038d075488954bcc9` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 802f83e628b8fa6106428ef05d3fb03f99816fd6` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 37e60db04eed9d6c5801d63f99cfd3af99b9a2c8` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 6e0d26e6ec90340533722214b7a923521f91caa2` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 780f380c66b80030379bec65bb1bd09ce6f6d9fc` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 9bc0e8c3df689765ad5161eb3aed15de8544f5ce` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before d49c6ee08365a8596f639da46eb7e71752b0cd42` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `2.6.12`
  - unaffected: `before 2.6.12` (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 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 12 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 24 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-97453](https://www.cve.org/CVERecord?id=CVE-2026-97453)
- [NVD: CVE-2026-97453](https://nvd.nist.gov/vuln/detail/CVE-2026-97453)

### References from the CNA

- <https://git.kernel.org/stable/c/6b9904fc65d82bea4922a33038d075488954bcc9>
- <https://git.kernel.org/stable/c/802f83e628b8fa6106428ef05d3fb03f99816fd6>
- <https://git.kernel.org/stable/c/37e60db04eed9d6c5801d63f99cfd3af99b9a2c8>
- <https://git.kernel.org/stable/c/6e0d26e6ec90340533722214b7a923521f91caa2>
- <https://git.kernel.org/stable/c/780f380c66b80030379bec65bb1bd09ce6f6d9fc>
- <https://git.kernel.org/stable/c/9bc0e8c3df689765ad5161eb3aed15de8544f5ce>
- <https://git.kernel.org/stable/c/d49c6ee08365a8596f639da46eb7e71752b0cd42>

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-2026-97453>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-97453/>. Everything for agents: <https://agentprime.io/llms.txt>.