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CVE-2026-93063· NVD / CVE Program· CNA Linux

wifi: iwlwifi: mei: check SAP message length before reading it

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mei: check SAP message length before reading it Verify the SAP message size is not larger than the local buffer before reading the message to avoid buffer overflow.

HighCVSS 8.4 · v3.1—No exploit Fix available
Published
Sep 17, 2026
Updated
Sep 18, 2026
EPSS
0.2% · 10th percentile
CWE
—
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Report tools

JSON

Action score

33

Monitor

Low priority for now.

CVSS
33 / 40 · 8.4 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CNA vs NVD score

NVD
—
CNA · Linux
8.4
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.

Affected systems

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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

    • 9f71cebcac2148e68d0d67f113d0f9aabfcc7a2a, 6.2affected
    • a29e442ee110aafdf7785fac6de44b22d3da43db and later · before a4034f1cc8a422cefc519290d8e6cfb7ff773586affected · git
    • bcd68b3dbe78b7b0f7b6b55162cf1eff1e7fff9e and later · before b90ebae632318dc2e5cd4ac96e454ec50f705579affected · git
    • bcd68b3dbe78b7b0f7b6b55162cf1eff1e7fff9e and later · before 9c6bea89a16815688a5240dd4a74c922a92fcdc3affected · git
    • bcd68b3dbe78b7b0f7b6b55162cf1eff1e7fff9e and later · before 242125bbf19a2974d22f3d5025c9c14c0a4aea58affected · git
    • bcd68b3dbe78b7b0f7b6b55162cf1eff1e7fff9e and later · before f7f770d12e6e928006f89a59291074e5fea82886affected · git
    • bcd68b3dbe78b7b0f7b6b55162cf1eff1e7fff9e and later · before 7d8cc301bcba233f31b589a45f4c1c97f2bb90d6affected · git
    • 6.1.2 and later · before 6.1.188affected · semver
    • 6.0.16 and later · before 6.1affected · semver
    • before 6.2not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxall versions—
Debian:13linuxbefore 6.12.111-16.12.111-1
Debian:14linuxbefore 7.2.6-17.2.6-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan
  • CVE-2026-74309vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler
    40Plan
  • CVE-2026-74280crypto: marvell/octeontx - fix DMA cleanup using wrong loop index
    40Plan
  • CVE-2026-74279crypto: cavium/cpt - fix DMA cleanup using wrong loop index
    40Plan

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 Linux242125bbf19a2974d22f3d5025c9c14c0a4aea58Vendor (CNA)
Linux Linux6.1Vendor (CNA)
Linux Linux6.1.188Vendor (CNA)
Linux Linux7d8cc301bcba233f31b589a45f4c1c97f2bb90d6Vendor (CNA)
Linux Linux9c6bea89a16815688a5240dd4a74c922a92fcdc3Vendor (CNA)
Linux Linuxa4034f1cc8a422cefc519290d8e6cfb7ff773586Vendor (CNA)
Linux Linuxb90ebae632318dc2e5cd4ac96e454ec50f705579Vendor (CNA)
Linux Linuxf7f770d12e6e928006f89a59291074e5fea82886Vendor (CNA)
azl3 kernel 6.6.150.1-1 on Azure Linux 3.0—Microsoft (MSRC)
azl3 kernel 6.6.152.1-1 on Azure Linux 3.06.6.157.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.12.111-1 · Debian:13Package registry (OSV)

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.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

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.

No nightly-computed relations.

Chain candidates

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

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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.
  • No account or password is required.
  • 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
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/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.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Noroxi analysis

No Noroxi analysis for this record yet

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Change log

  1. Fix✗ → ✓

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References

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

All records