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Vulnerability · Published Jan 13, 2026 · Assigned by Linux

CVE-2025-71077tpm: Cap the number of PCR banks

Medium 5.5

In plain English

A medium-severity improper input validation in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 4% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.1%top 96.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.162-1DEBIAN-CVE-2025-71077
Debian:13linux6.12.69-1DEBIAN-CVE-2025-71077
Debian:14linux6.18.3-1DEBIAN-CVE-2025-71077
Ubuntu:22.04:LTSlinux5.15.0-173.183UBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux6.8.0-110.110UBUNTU-CVE-2025-71077
Ubuntu:25.10linux6.17.0-22.22UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-aws5.15.0-1103.110UBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-aws6.8.0-1052.55UBUNTU-CVE-2025-71077
Ubuntu:25.10linux-aws6.17.0-1012.12UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-aws-6.176.17.0-1012.12~24.04.1UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1052.55~22.04.1UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-azure5.15.0-1109.118UBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-azure6.8.0-1054.60UBUNTU-CVE-2025-71077
Ubuntu:25.10linux-azure6.17.0-1013.13UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-azure-6.176.17.0-1013.13~24.04.1UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1059.65~22.04.1UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1109.118.1UBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1058.65UBUNTU-CVE-2025-71077
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1058.65~22.04.1UBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-gcp5.15.0-1103.112UBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-gcp6.8.0-1054.57UBUNTU-CVE-2025-71077
Ubuntu:25.10linux-gcp6.17.0-1012.12UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-gcp-6.176.17.0-1012.12~24.04.1UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1054.57~22.04.1UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-gke5.15.0-1099.105UBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-gke6.8.0-1050.56UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1086.94UBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1037.40UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-hwe-6.176.17.0-22.22~24.04.1UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-110.110~22.04.1UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-ibm5.15.0-1097.100UBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-ibm6.8.0-1051.51UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1051.51~22.04.1UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1098.104UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-kvm5.15.0-1095.100UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-173.183UBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-110.110.1UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-110.110.1~22.04.1UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1098.99UBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1051.54UBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-nvidia-6.176.17.0-1018.18UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1051.54~22.04.1UBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1051.54.1UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1055.55UBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1022.22UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1044.44UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-oem-6.176.17.0-1020.20UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-oracle5.15.0-1100.106UBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-oracle6.8.0-1049.50UBUNTU-CVE-2025-71077
Ubuntu:25.10linux-oracle6.17.0-1011.11UBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-oracle-6.176.17.0-1011.11~24.04.1UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1049.50~22.04.1UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-raspi5.15.0-1097.100UBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-raspi6.8.0-1052.56UBUNTU-CVE-2025-71077
Ubuntu:25.10linux-raspi6.17.0-1013.13UBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-71077
Ubuntu:25.10linux-realtime6.17.0-1010.11UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-71077
Ubuntu:25.10linux-riscv6.17.0-22.22.1UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-riscv-6.176.17.0-22.22.1~24.04.1UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-110.110~22.04.1UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-71077
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1028.29UBUNTU-CVE-2025-71077
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1067.71UBUNTU-CVE-2025-71077

Affected products (as reported)

VendorProductVersions
Linux Linux bcfff8384f6c4e6627676ef07ccad9cfacd67849 – before 8ceee7288152bc121a6bf92997261838c78bfe06bcfff8384f6c4e6627676ef07ccad9cfacd67849 – before 275c686f1e3cc056ec66c764489ec1fe1e51b950bcfff8384f6c4e6627676ef07ccad9cfacd67849 – before ceb70d31da5671d298bad94ae6c20e4bbb800f96bcfff8384f6c4e6627676ef07ccad9cfacd67849 – before d88481653d74d622d1d0d2c9bad845fc2cc6fd23bcfff8384f6c4e6627676ef07ccad9cfacd67849 – before b69492161c056d36789aee42a87a33c18c8ed5e1bcfff8384f6c4e6627676ef07ccad9cfacd67849 – before 858344bc9210bea9ab2bdc7e9e331ba84c164e50bcfff8384f6c4e6627676ef07ccad9cfacd67849 – before faf07e611dfa464b201223a7253e9dc5ee0f3c9e
Linux Linux 5.1

Weakness: CWE-20

References