CVE-2025-71077tpm: Cap the number of PCR banks
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-20
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from bcfff8384f6c4e6627676ef07ccad9cfacd67849 before 8ceee7288152bc121a6bf92997261838c78bfe06; from bcfff8384f6c4e6627676ef07ccad9cfacd67849 before 275c686f1e3cc056ec66c764489ec1fe1e51b950; from bcfff8384f6c4e6627676ef07ccad9cfacd67849 before ceb70d31da5671d298bad94ae6c20e4bbb800f96; from bcfff8384f6c4e6627676ef07ccad9cfacd67849 before d88481653d74d622d1d0d2c9bad845fc2cc6fd23; from bcfff8384f6c4e6627676ef07ccad9cfacd67849 before b69492161c056d36789aee42a87a33c18c8ed5e1; from bcfff8384f6c4e6627676ef07ccad9cfacd67849 before 858344bc9210bea9ab2bdc7e9e331ba84c164e50; from bcfff8384f6c4e6627676ef07ccad9cfacd67849 before faf07e611dfa464b201223a7253e9dc5ee0f3c9e | CNA record |
linux linux_kernel linux:linux_kernel | from 5.1.1 before 5.10.248; from 5.11 before 5.15.198; from 5.16 before 6.1.160; from 6.2 before 6.6.120; from 6.7 before 6.12.64; from 6.13 before 6.18.3; 5.1; 6.19; and 7 more ranges | NVD |
References
- https://git.kernel.org/stable/c/8ceee7288152bc121a6bf92997261838c78bfe06patch
- https://git.kernel.org/stable/c/275c686f1e3cc056ec66c764489ec1fe1e51b950patch
- https://git.kernel.org/stable/c/ceb70d31da5671d298bad94ae6c20e4bbb800f96patch
- https://git.kernel.org/stable/c/d88481653d74d622d1d0d2c9bad845fc2cc6fd23patch
- https://git.kernel.org/stable/c/b69492161c056d36789aee42a87a33c18c8ed5e1patch
- https://git.kernel.org/stable/c/858344bc9210bea9ab2bdc7e9e331ba84c164e50patch
- https://git.kernel.org/stable/c/faf07e611dfa464b201223a7253e9dc5ee0f3c9epatch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.