Vulnerability · Published Jun 25, 2026 · Assigned by Linux

CVE-2026-53182wifi: nl80211: reject oversized EMA RNR lists

High 7.8

In plain English

A high-severity integer overflow 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 3% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.1%top 97.4% 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: nl80211: reject oversized EMA RNR lists nl80211_parse_rnr_elems() stores the parsed element count in a u8-backed cfg80211_rnr_elems::cnt field and uses that count to size the flexible array allocation. Reject nested NL80211_ATTR_EMA_RNR_ELEMS input once the count reaches 255, before incrementing it again. This keeps the parser aligned with the data structure it fills and matches the existing bound check used by nl80211_parse_mbssid_elems().

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:10kernel6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:9kernel5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-64k6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-64k5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-64k-core6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-64k-core5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-64k-debug6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-64k-debug5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-64k-debug-core6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-64k-debug-core5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-64k-debug-devel6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-64k-debug-devel5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-64k-debug-devel-matched6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-64k-debug-devel-matched5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-64k-debug-modules6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-64k-debug-modules5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-64k-debug-modules-core6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-64k-debug-modules-core5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-64k-debug-modules-extra6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-64k-debug-modules-extra5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-64k-devel6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-64k-devel5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-64k-devel-matched6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-64k-devel-matched5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-64k-modules6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-64k-modules5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-64k-modules-core6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-64k-modules-core5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-64k-modules-extra6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-64k-modules-extra5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-abi-stablelists6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-abi-stablelists4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:9kernel-abi-stablelists5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-core6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-core4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:9kernel-core5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-cross-headers6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-cross-headers4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:9kernel-cross-headers5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-debug6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-debug4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:9kernel-debug5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-debug-core6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-debug-core4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:9kernel-debug-core5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-debug-devel6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-debug-devel4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:9kernel-debug-devel5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-debug-devel-matched6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-debug-devel-matched5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-debug-modules6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-debug-modules4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:9kernel-debug-modules5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-debug-modules-core6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-debug-modules-core5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-debug-modules-extra6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-debug-modules-extra4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:9kernel-debug-modules-extra5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-debug-uki-virt6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-debug-uki-virt5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-devel6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-devel4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:9kernel-devel5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-devel-matched6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-devel-matched5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-doc6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-doc4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:9kernel-doc5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-headers6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-headers4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:9kernel-headers5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-modules6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-modules4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:9kernel-modules5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-modules-core6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-modules-core5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-modules-extra6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-modules-extra4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:9kernel-modules-extra5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-modules-extra-matched6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:10kernel-rt6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-rt4.18.0-553.163.1.rt7.504.el8_10ALSA-2026:67469
AlmaLinux:9kernel-rt5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-rt-64k6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-rt-64k5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-rt-64k-core6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-rt-64k-core5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-rt-64k-debug6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-rt-64k-debug5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-rt-64k-debug-core6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-rt-64k-debug-core5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-rt-64k-debug-devel6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-rt-64k-debug-devel5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-rt-64k-debug-modules6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-rt-64k-debug-modules5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-rt-64k-debug-modules-core6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-rt-64k-debug-modules-core5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-rt-64k-debug-modules-extra6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-rt-64k-debug-modules-extra5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-rt-64k-devel6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-rt-64k-devel5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-rt-64k-modules6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-rt-64k-modules5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-rt-64k-modules-core6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-rt-64k-modules-core5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-rt-64k-modules-extra6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-rt-64k-modules-extra5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-rt-core6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-rt-core4.18.0-553.163.1.rt7.504.el8_10ALSA-2026:67469
AlmaLinux:9kernel-rt-core5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-rt-debug6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-rt-debug4.18.0-553.163.1.rt7.504.el8_10ALSA-2026:67469
AlmaLinux:9kernel-rt-debug5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-rt-debug-core6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-rt-debug-core4.18.0-553.163.1.rt7.504.el8_10ALSA-2026:67469
AlmaLinux:9kernel-rt-debug-core5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-rt-debug-devel6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-rt-debug-devel4.18.0-553.163.1.rt7.504.el8_10ALSA-2026:67469
AlmaLinux:9kernel-rt-debug-devel5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-rt-debug-modules6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-rt-debug-modules4.18.0-553.163.1.rt7.504.el8_10ALSA-2026:67469
AlmaLinux:9kernel-rt-debug-modules5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-rt-debug-modules-core6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-rt-debug-modules-core5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-rt-debug-modules-extra6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-rt-debug-modules-extra4.18.0-553.163.1.rt7.504.el8_10ALSA-2026:67469
AlmaLinux:9kernel-rt-debug-modules-extra5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-rt-devel6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-rt-devel4.18.0-553.163.1.rt7.504.el8_10ALSA-2026:67469
AlmaLinux:9kernel-rt-devel5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-rt-modules6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-rt-modules4.18.0-553.163.1.rt7.504.el8_10ALSA-2026:67469
AlmaLinux:9kernel-rt-modules5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-rt-modules-core6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-rt-modules-core5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-rt-modules-extra6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-rt-modules-extra4.18.0-553.163.1.rt7.504.el8_10ALSA-2026:67469
AlmaLinux:9kernel-rt-modules-extra5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-tools6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-tools4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:9kernel-tools5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-tools-libs6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-tools-libs4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:9kernel-tools-libs5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-tools-libs-devel6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-tools-libs-devel4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:9kernel-tools-libs-devel5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-uki-virt6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-uki-virt5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-uki-virt-addons6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-uki-virt-addons5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-zfcpdump6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-zfcpdump4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:9kernel-zfcpdump5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-zfcpdump-core6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-zfcpdump-core4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:9kernel-zfcpdump-core5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-zfcpdump-devel6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-zfcpdump-devel4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:9kernel-zfcpdump-devel5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-zfcpdump-devel-matched6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-zfcpdump-devel-matched5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-zfcpdump-modules6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-zfcpdump-modules4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:9kernel-zfcpdump-modules5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-zfcpdump-modules-core6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9kernel-zfcpdump-modules-core5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10kernel-zfcpdump-modules-extra6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:9kernel-zfcpdump-modules-extra5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10libperf6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9libperf5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10perf6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8perf4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:9perf5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10python3-perf6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:8python3-perf4.18.0-553.163.1.el8_10ALSA-2026:67468
AlmaLinux:9python3-perf5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10rtla6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9rtla5.14.0-687.47.1.el9_8ALSA-2026:67150
AlmaLinux:10rv6.12.0-211.53.1.el10_2ALSA-2026:65334
AlmaLinux:9rv5.14.0-687.47.1.el9_8ALSA-2026:67150
Debian:12linux6.1.176-1DEBIAN-CVE-2026-53182
Debian:13linux6.12.94-1DEBIAN-CVE-2026-53182
Debian:14linux7.0.13-1DEBIAN-CVE-2026-53182
Rocky Linux:10kernel0:6.12.0-211.53.1.el10_2RLSA-2026:65334
Rocky Linux:8kernel0:4.18.0-553.163.1.el8_10RLSA-2026:67468
Rocky Linux:9kernel0:5.14.0-687.47.1.el9_8RLSA-2026:67150
Rocky Linux:8kernel-rt0:4.18.0-553.163.1.rt7.504.el8_10RLSA-2026:67469
Ubuntu:24.04:LTSlinux6.8.0-146.146UBUNTU-CVE-2026-53182
Ubuntu:25.10linuxno fix listedUBUNTU-CVE-2026-53182
Ubuntu:26.04:LTSlinux7.0.0-31.31UBUNTU-CVE-2026-53182
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-53182
Ubuntu:24.04:LTSlinux-aws6.8.0-1066.69UBUNTU-CVE-2026-53182
Ubuntu:25.10linux-awsno fix listedUBUNTU-CVE-2026-53182
Ubuntu:26.04:LTSlinux-aws7.0.0-1012.12UBUNTU-CVE-2026-53182
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-53182
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-53182

Affected products (as reported)

VendorProductVersions
Linux Linux 56189d7bc30531def6b999f27940ee43c6ff2569 – before fc0ec2fc02dfe52c5821f36fbccf6a45df43f508dbbb27e183b1568d5a907ace1cd144b0709ea52a – before 688fcac7054abc680c0eef753f2bb772cfaf8cf7dbbb27e183b1568d5a907ace1cd144b0709ea52a – before 30c3fa80f423613efdda3deca4af52ff7d20e4e2dbbb27e183b1568d5a907ace1cd144b0709ea52a – before 265c07c09c837621730d35f02975207a1224bf05dbbb27e183b1568d5a907ace1cd144b0709ea52a – before ecbf3c45add30a0857414e156bdb9c79906f0ff6dbbb27e183b1568d5a907ace1cd144b0709ea52a – before 4cd92957e8f8cc4ebfe8a5d4203c14c592fde6b16.1.160 – before 6.1.176
Linux Linux 6.4

Weakness: CWE-190 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References