Vulnerability · Published Sep 19, 2025 · Assigned by Linux

CVE-2025-39849wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result()

High 8.8

In plain English

A high-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 0.2% (higher than 13% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.2%top 87.1% 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: wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result() If the ssid->datalen is more than IEEE80211_MAX_SSID_LEN (32) it would lead to memory corruption so add some bounds checking.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:8kernel4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:9kernel5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-64k5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-64k-core5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-64k-debug5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-64k-debug-core5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-64k-debug-devel5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-64k-debug-devel-matched5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-64k-debug-modules5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-64k-debug-modules-core5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-64k-debug-modules-extra5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-64k-devel5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-64k-devel-matched5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-64k-modules5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-64k-modules-core5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-64k-modules-extra5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-abi-stablelists4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:9kernel-abi-stablelists5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-core4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:9kernel-core5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-cross-headers4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:9kernel-cross-headers5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-debug4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:9kernel-debug5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-debug-core4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:9kernel-debug-core5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-debug-devel4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:9kernel-debug-devel5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-debug-devel-matched5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-debug-modules4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:9kernel-debug-modules5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-debug-modules-core5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-debug-modules-extra4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:9kernel-debug-modules-extra5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-debug-uki-virt5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-devel4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:9kernel-devel5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-devel-matched5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-doc4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:9kernel-doc5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-headers4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:9kernel-headers5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-modules4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:9kernel-modules5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-modules-core5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-modules-extra4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:9kernel-modules-extra5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-rt4.18.0-553.81.1.rt7.422.el8_10ALSA-2025:19103
AlmaLinux:9kernel-rt5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-rt-64k5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-rt-64k-core5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-rt-64k-debug5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-rt-64k-debug-core5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-rt-64k-debug-devel5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-rt-64k-debug-modules5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-rt-64k-debug-modules-core5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-rt-64k-debug-modules-extra5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-rt-64k-devel5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-rt-64k-modules5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-rt-64k-modules-core5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-rt-64k-modules-extra5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-rt-core4.18.0-553.81.1.rt7.422.el8_10ALSA-2025:19103
AlmaLinux:9kernel-rt-core5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-rt-debug4.18.0-553.81.1.rt7.422.el8_10ALSA-2025:19103
AlmaLinux:9kernel-rt-debug5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-rt-debug-core4.18.0-553.81.1.rt7.422.el8_10ALSA-2025:19103
AlmaLinux:9kernel-rt-debug-core5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-rt-debug-devel4.18.0-553.81.1.rt7.422.el8_10ALSA-2025:19103
AlmaLinux:9kernel-rt-debug-devel5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-rt-debug-kvm5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-rt-debug-modules4.18.0-553.81.1.rt7.422.el8_10ALSA-2025:19103
AlmaLinux:9kernel-rt-debug-modules5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-rt-debug-modules-core5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-rt-debug-modules-extra4.18.0-553.81.1.rt7.422.el8_10ALSA-2025:19103
AlmaLinux:9kernel-rt-debug-modules-extra5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-rt-devel4.18.0-553.81.1.rt7.422.el8_10ALSA-2025:19103
AlmaLinux:9kernel-rt-devel5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-rt-kvm5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-rt-modules4.18.0-553.81.1.rt7.422.el8_10ALSA-2025:19103
AlmaLinux:9kernel-rt-modules5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-rt-modules-core5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-rt-modules-extra4.18.0-553.81.1.rt7.422.el8_10ALSA-2025:19103
AlmaLinux:9kernel-rt-modules-extra5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-tools4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:9kernel-tools5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-tools-libs4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:9kernel-tools-libs5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-tools-libs-devel4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:9kernel-tools-libs-devel5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-uki-virt5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-uki-virt-addons5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-zfcpdump4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:9kernel-zfcpdump5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-zfcpdump-core4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:9kernel-zfcpdump-core5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-zfcpdump-devel4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:9kernel-zfcpdump-devel5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-zfcpdump-devel-matched5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-zfcpdump-modules4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:9kernel-zfcpdump-modules5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9kernel-zfcpdump-modules-core5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:9kernel-zfcpdump-modules-extra5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9libperf5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8perf4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:9perf5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:8python3-perf4.18.0-553.81.1.el8_10ALSA-2025:19102
AlmaLinux:9python3-perf5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9rtla5.14.0-570.55.1.el9_6ALSA-2025:18281
AlmaLinux:9rv5.14.0-570.55.1.el9_6ALSA-2025:18281
Debian:12linux6.1.153-1DEBIAN-CVE-2025-39849
Debian:13linux6.12.48-1DEBIAN-CVE-2025-39849
Debian:14linux6.16.6-1DEBIAN-CVE-2025-39849
Rocky Linux:10kernel0:6.12.0-55.41.1.el10_0RLSA-2025:19106
Rocky Linux:8kernel0:4.18.0-553.81.1.el8_10RLSA-2025:19102
Rocky Linux:8kernel-rt0:4.18.0-553.81.1.rt7.422.el8_10RLSA-2025:19103
Ubuntu:24.04:LTSlinux6.8.0-106.106UBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-aws6.8.0-1050.53UBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1050.53~22.04.1UBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-azure6.8.0-1051.57UBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1051.57~22.04.1UBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1058.65UBUNTU-CVE-2025-39849
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1058.65~22.04.1UBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-gcp6.8.0-1052.55UBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1052.55~22.04.1UBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-gke6.8.0-1048.53UBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1035.38UBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-106.106~22.04.1UBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-ibm6.8.0-1049.49UBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1049.49~22.04.1UBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-106.106.1UBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-106.106.1~22.04.1UBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1049.52UBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1049.52~22.04.1UBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1049.52.1UBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1020.20UBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-oracle6.8.0-1047.48UBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1047.48~22.04.1UBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-raspi6.8.0-1050.54UBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-106.106~22.04.1UBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-39849
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-39849
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1028.29UBUNTU-CVE-2025-39849

Affected products (as reported)

VendorProductVersions
Linux Linux dd43f8f90206054e7da7593de0a334fb2cd0ea88 – before 8e751d46336205abc259ed3990e850a9843fb649c38c701851011c94ce3be1ccb3593678d2933fd8 – before e472f59d02c82b511bc43a3f96d62ed08bf4537fc38c701851011c94ce3be1ccb3593678d2933fd8 – before 31229145e6ba5ace3e9391113376fa05b7831edec38c701851011c94ce3be1ccb3593678d2933fd8 – before 5cb7cab7adf9b1e6a99e2081b0e30e9e59d07523c38c701851011c94ce3be1ccb3593678d2933fd8 – before 62b635dcd69c4fde7ce1de4992d71420a37e51e3bf3c348c5fdcf00a7eeed04a1b83e454d2dca2e56.1.16 – before 6.1.1516.2.3 – before 6.3
Linux Linux 6.3

References