# KVM: SVM: Use the active VMCB's MSR bitmap when checking if MSR is intercepted

CVE record · `CVE-2026-98716`

- **Identifiers:** `CVE-2026-98716`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 18 Oct 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 18 Oct 2026, 15:46 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: `b2ac58f90540e39324e7a29a7ad471407ae0bf48 to before 001c78bc64389cabe4f9015ab3942ec9c3592caa` (git)
  - affected: `b2ac58f90540e39324e7a29a7ad471407ae0bf48 to before 552a110c403f1a61eba0bf71519c6585d9d4242d` (git)
  - affected: `b2ac58f90540e39324e7a29a7ad471407ae0bf48 to before 0e79ebf6f92a7d15187aede44204fa04b93e474c` (git)
  - affected: `b2ac58f90540e39324e7a29a7ad471407ae0bf48 to before 84da7a0e92207444d9cbfe69965e17db29008f27` (git)
  - affected: `b2ac58f90540e39324e7a29a7ad471407ae0bf48 to before 74836ae4785b9754bb36d0b18fcc1dec4e5e98d2` (git)
  - affected: `b2ac58f90540e39324e7a29a7ad471407ae0bf48 to before 318ef696fa3c712e46bb62a1a828c3cd62f390c3` (git)
  - affected: `b2ac58f90540e39324e7a29a7ad471407ae0bf48 to before 55865b3ae03705aa39198783b9cb1f8b96eb44e4` (git)
  - affected: `b2ac58f90540e39324e7a29a7ad471407ae0bf48 to before 9e06bbb9ade7cdf28d4a3b5b14e5812881c8df85` (git)
  - affected: `f54d0bb8487d2f016fbc4f0e38ef9098f8eb8bd4` (git)
  - affected: `89be8950bab799ddb9cc3777345e3c21bcb32dba` (git)
  - affected: `3.16.57 to before 3.17` (semver)
  - affected: `4.4.168 to before 4.5` (semver)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.16`
  - unaffected: `before 4.16` (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: `6.18.56 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.10 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:** 0.0018, the 7th percentile, on 8 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 18 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98716](https://www.cve.org/CVERecord?id=CVE-2026-98716)
- [NVD: CVE-2026-98716](https://nvd.nist.gov/vuln/detail/CVE-2026-98716)

### References from the CNA

- <https://git.kernel.org/stable/c/001c78bc64389cabe4f9015ab3942ec9c3592caa>
- <https://git.kernel.org/stable/c/552a110c403f1a61eba0bf71519c6585d9d4242d>
- <https://git.kernel.org/stable/c/0e79ebf6f92a7d15187aede44204fa04b93e474c>
- <https://git.kernel.org/stable/c/84da7a0e92207444d9cbfe69965e17db29008f27>
- <https://git.kernel.org/stable/c/74836ae4785b9754bb36d0b18fcc1dec4e5e98d2>
- <https://git.kernel.org/stable/c/318ef696fa3c712e46bb62a1a828c3cd62f390c3>
- <https://git.kernel.org/stable/c/55865b3ae03705aa39198783b9cb1f8b96eb44e4>
- <https://git.kernel.org/stable/c/9e06bbb9ade7cdf28d4a3b5b14e5812881c8df85>

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-2026-98716>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98716/>. Everything for agents: <https://agentprime.io/llms.txt>.