5.5med

CVE-2025-71077

tpm: Cap the number of PCR banks

Published 9 mo ago · modified 19 d ago · JSON

CVSS
5.5
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
0.1%
percentile 4%
Public exploits
0
none known

Summary

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.

CISA SSVC assessment

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
4 mo ago

Exploit prediction (EPSS)

0.15% probability of exploitation in the next 30 days, higher than 4% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.15.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Linux Linux

Classification

Weakness
  • CWE-20 Improper Input Validation
Technology feeds
Linux kernel (RSS, critical only)

References

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.