CVE-2025-71077

What it is

In the Linux kernel, the following vulnerability has been resolved: tpm: Cap the number of PCR banks tpm2_get_pcr_allocation() does not cap any upper limit for the number of banks. Cap the limit to eight banks so that out of bounds values coming from external I/O cause on only limited harm.

At a glance

Exploitability

Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.

Exploit odds

0.1% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-01-13 16:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-10-19 19:17 UTC Last updatedMost recent change to the record

Details

Published

2026-01-13 16:16 UTC

Last modified

2026-10-19 19:17 UTC

Exploit probability

0.1% · EPSS, next 30 days

Weakness

CWE-20 · Improper input validation

Record status

Modified

Affected

• Linux Kernel < 5.10.248
• Linux Kernel < 5.15.198
• Linux Kernel < 6.1.160
• Linux Kernel < 6.6.120
• Linux Kernel < 6.12.64
• Linux Kernel < 6.18.3
• Linux Kernel 5.1
• Linux Kernel 6.19

Attack profile CVSS 3.1 · 5.5

Attack vector

Local

Complexity

Low

Privileges needed

Low

User interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High