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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2025-71077

tpm: Cap the number of PCR banksCVE-2025-71077

Answer in brief

CVE-2025-71077 records a Unknown severity vulnerability in tpm: Cap the number of PCR banks. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jan 13, 2026Updated Oct 19, 2026Source checked Oct 19, 2026First seen by HOL Oct 19, 2026Material review Oct 19, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=bcfff8384f6c4e6627676ef07ccad9cfacd67849 <8ceee7288152bc121a6bf92997261838c78bfe06 || >=bcfff8384f6c4e6627676ef07ccad9cfacd67849 <275c686f1e3cc056ec66c764489ec1fe1e51b950 || >=bcfff8384f6c4e6627676ef07ccad9cfacd67849 <ceb70d31da5671d298bad94ae6c20e4bbb800f96 || >=bcfff8384f6c4e6627676ef07ccad9cfacd67849 <d88481653d74d622d1d0d2c9bad845fc2cc6fd23 || >=bcfff8384f6c4e6627676ef07ccad9cfacd67849 <b69492161c056d36789aee42a87a33c18c8ed5e1 || >=bcfff8384f6c4e6627676ef07ccad9cfacd67849 <858344bc9210bea9ab2bdc7e9e331ba84c164e50 || >=bcfff8384f6c4e6627676ef07ccad9cfacd67849 <faf07e611dfa464b201223a7253e9dc5ee0f3c9e8ceee7288152bc121a6bf92997261838c78bfe06, 275c686f1e3cc056ec66c764489ec1fe1e51b950, ceb70d31da5671d298bad94ae6c20e4bbb800f96, d88481653d74d622d1d0d2c9bad845fc2cc6fd23, b69492161c056d36789aee42a87a33c18c8ed5e1, 858344bc9210bea9ab2bdc7e9e331ba84c164e50, faf07e611dfa464b201223a7253e9dc5ee0f3c9e
Linux/Linuxgeneric5.1Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to 8ceee7288152bc121a6bf92997261838c78bfe06 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Jan 13, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 19, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 19, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-20
Source
CVE List V5
Source checked
Oct 19, 2026
References
7 linked sources
Open source record