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Vulnerability · Published Sep 15, 2025 · Assigned by Linux

CVE-2022-50235NFSD: Protect against send buffer overflow in NFSv2 READDIR

Critical 9.8

In plain English

A critical-severity security flaw 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 0.4% (higher than 37% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.4%top 62.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: NFSD: Protect against send buffer overflow in NFSv2 READDIR Restore the previous limit on the @count argument to prevent a buffer overflow attack.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.0.3-1DEBIAN-CVE-2022-50235
Debian:13linux6.0.3-1DEBIAN-CVE-2022-50235
Debian:14linux6.0.3-1DEBIAN-CVE-2022-50235
Ubuntu:22.04:LTSlinux5.15.0-56.62UBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-aws5.15.0-1026.30UBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-azure5.15.0-1029.36UBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-50235
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1029.36.1UBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-gcp5.15.0-1025.32UBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-50235
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-gke5.15.0-1023.28UBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1011.15UBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-50235
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-ibm5.15.0-1021.24UBUNTU-CVE-2022-50235
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1021.26UBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-kvm5.15.0-1024.29UBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-56.62UBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-50235
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1015.15UBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-50235
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2022-50235
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-oracle5.15.0-1025.31UBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-raspi5.15.0-1021.23UBUNTU-CVE-2022-50235
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-50235
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-50235
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-50235
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2022-50235

Affected products (as reported)

VendorProductVersions
Linux Linux 9e291a6a28d32545ed2fd959a8165144d1724df1 – before 0e57d696f60dee6117a8ace0cac7c5761d375277eabc0aab98e5218ceecd82069b0d6fdfff5ee885 – before dc7f225090c29a5f3b9419b1af32846a201555e753b1119a6e5028b125f431a0116ba73510d82a72 – before c2a878095b5c6f04f90553a3c45872f990dab14e53b1119a6e5028b125f431a0116ba73510d82a72 – before f59c74df82f6ac9d2ea4e01aa3ae7c6c4481652d53b1119a6e5028b125f431a0116ba73510d82a72 – before 00b4492686e0497fdb924a9d4c8f6f99377e176c5.15.12 – before 5.15.75
Linux Linux 5.16

References