# CVE-2026-56911: CVE-2026-56911

Status: published. Published: 2026-11-10. Updated: 2026-11-11.

In handle_fips_hmac_req of hwcrypto_proxy.c, there is a possible heap buffer overflow due to missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Google / Android: Android kernel (affected). Source: CNA: Google_Devices

## Severity and prioritization

- CVSS 3.1: 6.7 (medium); CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H; source: ADP: CISA-ADP

- CVSS 3.1: 6.7 (medium); CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H; source: NVD: 134c704f-9b21-4f2e-91b3-4a467353bcc0

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: exploitation none; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-119

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://source.android.com/docs/security/bulletin/pixel/2026/2026-11-01 (CNA: Google_Devices)

- https://source.android.com/docs/security/bulletin/pixel/2026/2026-11-01 (dsap-vuln-management@google.com)

## Provenance

- CNA: Google_Devices: https://www.cve.org/CVERecord?id=CVE-2026-56911; retrieved 2026-11-11; source updated 2026-11-11

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-56911; retrieved 2026-11-11; source updated 2026-11-11

Revision: 90fc062c7bb3447a7ad51bdd52313abfbcb4911ad361a72f56a6b838af2a6d8f

Canonical: https://y2.dev/cve/CVE-2026-56911

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