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NVD / CVE Program· CNA Linux

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

Noroxi assessment

Priority: Monitor (action score 31/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.13% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 265c07c09c837621730d35f02975207a1224bf05, 30c3fa80f423613efdda3deca4af52ff7d20e4e2, 4cd92957e8f8cc4ebfe8a5d4203c14c592fde6b1; azl3 kernel 6.6.141.1-1 on Azure Linux 3.0 6.6.143.1-1.

Low priority for now. Upgrade to Linux Linux 265c07c09c837621730d35f02975207a1224bf05, 30c3fa80f423613efdda3deca4af52ff7d20e4e2, 4cd92957e8f8cc4ebfe8a5d4203c14c592fde6b1; azl3 kernel 6.6.141.1-1 on Azure Linux 3.0 6.6.143.1-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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().

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Jun 25, 2026
Updated
Oct 19, 2026
EPSS
0.1% · 2th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · Linux
7.8
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-53182

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel6.1.160 and later · before 6.1.176
  • linux linux kernel6.4 and later · before 6.6.143
  • linux linux kernel6.7 and later · before 6.12.94
  • linux linux kernel6.13 and later · before 6.18.36
  • linux linux kernel6.19 and later · before 7.0.13
  • linux linux kernel7.1

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 6.4affected
    • 56189d7bc30531def6b999f27940ee43c6ff2569 and later · before fc0ec2fc02dfe52c5821f36fbccf6a45df43f508affected · git
    • dbbb27e183b1568d5a907ace1cd144b0709ea52a and later · before 688fcac7054abc680c0eef753f2bb772cfaf8cf7affected · git
    • dbbb27e183b1568d5a907ace1cd144b0709ea52a and later · before 30c3fa80f423613efdda3deca4af52ff7d20e4e2affected · git
    • dbbb27e183b1568d5a907ace1cd144b0709ea52a and later · before 265c07c09c837621730d35f02975207a1224bf05affected · git
    • dbbb27e183b1568d5a907ace1cd144b0709ea52a and later · before ecbf3c45add30a0857414e156bdb9c79906f0ff6affected · git
    • dbbb27e183b1568d5a907ace1cd144b0709ea52a and later · before 4cd92957e8f8cc4ebfe8a5d4203c14c592fde6b1affected · git
    • 6.1.160 and later · before 6.1.176affected · semver
    • before 6.4not affected · semver
    • 6.1.176 and later · up to and including 6.1.*not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:10kernelbefore 6.12.0-211.53.1.el10_26.12.0-211.53.1.el10_2
AlmaLinux:10kernel-64kbefore 6.12.0-211.53.1.el10_26.12.0-211.53.1.el10_2
AlmaLinux:10kernel-64k-corebefore 6.12.0-211.53.1.el10_26.12.0-211.53.1.el10_2
AlmaLinux:10kernel-64k-debugbefore 6.12.0-211.53.1.el10_26.12.0-211.53.1.el10_2
AlmaLinux:10kernel-64k-debug-corebefore 6.12.0-211.53.1.el10_26.12.0-211.53.1.el10_2
AlmaLinux:10kernel-64k-debug-develbefore 6.12.0-211.53.1.el10_26.12.0-211.53.1.el10_2
AlmaLinux:10kernel-64k-debug-devel-matchedbefore 6.12.0-211.53.1.el10_26.12.0-211.53.1.el10_2
AlmaLinux:10kernel-64k-debug-modulesbefore 6.12.0-211.53.1.el10_26.12.0-211.53.1.el10_2
AlmaLinux:10kernel-64k-debug-modules-corebefore 6.12.0-211.53.1.el10_26.12.0-211.53.1.el10_2
AlmaLinux:10kernel-64k-debug-modules-extrabefore 6.12.0-211.53.1.el10_26.12.0-211.53.1.el10_2
AlmaLinux:10kernel-64k-develbefore 6.12.0-211.53.1.el10_26.12.0-211.53.1.el10_2
AlmaLinux:10kernel-64k-devel-matchedbefore 6.12.0-211.53.1.el10_26.12.0-211.53.1.el10_2
AlmaLinux:10kernel-64k-modulesbefore 6.12.0-211.53.1.el10_26.12.0-211.53.1.el10_2
AlmaLinux:10kernel-64k-modules-corebefore 6.12.0-211.53.1.el10_26.12.0-211.53.1.el10_2
AlmaLinux:10kernel-64k-modules-extrabefore 6.12.0-211.53.1.el10_26.12.0-211.53.1.el10_2
AlmaLinux:10kernel-abi-stablelistsbefore 6.12.0-211.53.1.el10_26.12.0-211.53.1.el10_2
AlmaLinux:10kernel-corebefore 6.12.0-211.53.1.el10_26.12.0-211.53.1.el10_2
AlmaLinux:10kernel-cross-headersbefore 6.12.0-211.53.1.el10_26.12.0-211.53.1.el10_2
AlmaLinux:10kernel-debugbefore 6.12.0-211.53.1.el10_26.12.0-211.53.1.el10_2
AlmaLinux:10kernel-debug-corebefore 6.12.0-211.53.1.el10_26.12.0-211.53.1.el10_2
AlmaLinux:10kernel-debug-develbefore 6.12.0-211.53.1.el10_26.12.0-211.53.1.el10_2
AlmaLinux:10kernel-debug-devel-matchedbefore 6.12.0-211.53.1.el10_26.12.0-211.53.1.el10_2
AlmaLinux:10kernel-debug-modulesbefore 6.12.0-211.53.1.el10_26.12.0-211.53.1.el10_2
AlmaLinux:10kernel-debug-modules-corebefore 6.12.0-211.53.1.el10_26.12.0-211.53.1.el10_2

+96

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2026-53180Jun 25, 2026 · timers/migration: Fix livelock in tmigr_handle_remote_up()
    30Monitor
  • ← EarlierCVE-2026-53181Jun 25, 2026 · vsock/vmci: fix sk_ack_backlog leak on failed handshake
    22Monitor
  • Later →CVE-2026-53183Jun 25, 2026 · mptcp: allow subflow rcv wnd to shrink
    30Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux265c07c09c837621730d35f02975207a1224bf05Vendor (CNA)
Linux Linux30c3fa80f423613efdda3deca4af52ff7d20e4e2Vendor (CNA)
Linux Linux4cd92957e8f8cc4ebfe8a5d4203c14c592fde6b1Vendor (CNA)
Linux Linux6.1.176Vendor (CNA)
Linux Linux688fcac7054abc680c0eef753f2bb772cfaf8cf7Vendor (CNA)
Linux Linuxecbf3c45add30a0857414e156bdb9c79906f0ff6Vendor (CNA)
Linux Linuxfc0ec2fc02dfe52c5821f36fbccf6a45df43f508Vendor (CNA)
azl3 kernel 6.6.141.1-1 on Azure Linux 3.06.6.143.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
almalinux:kernel6.12.0-211.53.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k6.12.0-211.53.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-core6.12.0-211.53.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug6.12.0-211.53.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug-core6.12.0-211.53.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug-devel6.12.0-211.53.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug-devel-matched6.12.0-211.53.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug-modules6.12.0-211.53.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug-modules-core6.12.0-211.53.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug-modules-extra6.12.0-211.53.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-devel6.12.0-211.53.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-devel-matched6.12.0-211.53.1.el10_2 · AlmaLinux:10Package registry (OSV)
debian:linux6.1.176-1 · Debian:12Package registry (OSV)
red hat:kernel-64k-debug-debuginfo0:6.12.0-211.53.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-64k-debug-devel0:6.12.0-211.53.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-64k-debug-devel-matched0:6.12.0-211.53.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-64k-debuginfo0:6.12.0-211.53.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-64k-devel0:6.12.0-211.53.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-64k-devel-matched0:6.12.0-211.53.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-debug-debuginfo0:6.12.0-211.53.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-debug-devel0:6.12.0-211.53.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-debug-devel-matched0:6.12.0-211.53.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)

+17

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-4632516 days apartRDMA/rxe: Fix iova-to-va conversion for MR page sizes != PAGE_SIZE
    39Monitor
  • CVE-2026-4603929 days apartrxgk: Fix potential integer overflow in length check
    39Monitor
  • CVE-2026-4334148 days apartnet/ipv6: ioam6: prevent schema length wraparound in trace fill
    39Monitor
  • CVE-2026-3163362 days apartrxrpc: Fix integer overflow in rxgk_verify_response()
    39Monitor
  • CVE-2026-3164962 days apartnet: stmmac: fix integer underflow in chain mode
    39Monitor
  • CVE-2026-3165962 days apartbatman-adv: reject oversized global TT response buffers
    39Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-190 · Integer Overflow or Wraparound

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. SSVC exploitation— → none
  2. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (5 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records