Skip to content
Noroxi
CVE-2026-68355· NVD / CVE Program· CNA Linux

wifi: ath11k: fix potential buffer underflow in ath11k_hal_rx_msdu_list_get()

Noroxi assessment

Priority: Monitor (action score 0/100)

  • 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: 0.18% (FIRST EPSS).
  • Fixed version: Linux Linux 085a5fde5bac29c01059e69399b417e91c0a6c18, 20d18a5ec6ec364fcaf0d03af6fc43dcc42c6591, 31ea4b175bc3ab430be15834d9ee8a1ce65bee15; azl3 kernel 6.6.143.1-1 on Azure Linux 3.0 6.6.150.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 085a5fde5bac29c01059e69399b417e91c0a6c18, 20d18a5ec6ec364fcaf0d03af6fc43dcc42c6591, 31ea4b175bc3ab430be15834d9ee8a1ce65bee15; azl3 kernel 6.6.143.1-1 on Azure Linux 3.0 6.6.150.1-1 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: ath11k: fix potential buffer underflow in ath11k_hal_rx_msdu_list_get() When the first entry in msdu_details has a zero buffer address, the code accesses msdu_details[i - 1] with i == 0, causing a buffer underflow. Fix similarly to ath12k_wifi7_hal_rx_msdu_list_get() by adding a separate check for i == 0 before the main condition to prevent the out-of-bounds access. Found by Linux Verification Center (linuxtesting.org) with SVACE.

—No exploit Fix available
Published
Aug 10, 2026
Updated
Aug 19, 2026
EPSS
0.1% · 7th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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-2026-68355

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

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for linux records

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

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.

We use this product, ask for help

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.

—

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

    • 5.6affected
    • d5c65159f2895379e11ca13f62feabe93278985d and later · before 085a5fde5bac29c01059e69399b417e91c0a6c18affected · git
    • d5c65159f2895379e11ca13f62feabe93278985d and later · before 31ea4b175bc3ab430be15834d9ee8a1ce65bee15affected · git
    • d5c65159f2895379e11ca13f62feabe93278985d and later · before 20d18a5ec6ec364fcaf0d03af6fc43dcc42c6591affected · git
    • d5c65159f2895379e11ca13f62feabe93278985d and later · before 69a6a4f60b2da92c0bdfd9264b8ffe053f51f52aaffected · git
    • d5c65159f2895379e11ca13f62feabe93278985d and later · before 904367381a922aa2dc3e8bd2488e6c9180516c7aaffected · git
    • d5c65159f2895379e11ca13f62feabe93278985d and later · before a154ca3c441a67d36b3a9ea63a4f11b06abe6223affected · git
    • d5c65159f2895379e11ca13f62feabe93278985d and later · before 725c1c3a8c5d920a7d3f5887412f2ad8e95a74f5affected · git
    • d5c65159f2895379e11ca13f62feabe93278985d and later · before 7f11e70629650ff6ea140984e5ce188b775b2683affected · git
    • before 5.6not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.187-16.1.187-1
Debian:12linux-6.12before 6.12.101-1~deb12u16.12.101-1~deb12u1
Debian:13linuxbefore 6.12.101-16.12.101-1
Debian:14linuxbefore 7.1.6-17.1.6-1

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

Published before and after this one in the same product

  • ← EarlierCVE-2026-68350Aug 10, 2026 · wifi: carl9170: fix OOB read from off-by-two in TX status handler
    0Monitor
  • ← EarlierCVE-2026-68351Aug 10, 2026 · wifi: carl9170: bound memcpy length in cmd callback to prevent OOB read
    0Monitor
  • Later →CVE-2026-68356Aug 10, 2026 · watchdog: airoha: Prevent division by zero when clock frequency is zero
    0Monitor

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 Linux085a5fde5bac29c01059e69399b417e91c0a6c18Vendor (CNA)
Linux Linux20d18a5ec6ec364fcaf0d03af6fc43dcc42c6591Vendor (CNA)
Linux Linux31ea4b175bc3ab430be15834d9ee8a1ce65bee15Vendor (CNA)
Linux Linux69a6a4f60b2da92c0bdfd9264b8ffe053f51f52aVendor (CNA)
Linux Linux725c1c3a8c5d920a7d3f5887412f2ad8e95a74f5Vendor (CNA)
Linux Linux7f11e70629650ff6ea140984e5ce188b775b2683Vendor (CNA)
Linux Linux904367381a922aa2dc3e8bd2488e6c9180516c7aVendor (CNA)
Linux Linuxa154ca3c441a67d36b3a9ea63a4f11b06abe6223Vendor (CNA)
azl3 kernel 6.6.143.1-1 on Azure Linux 3.06.6.150.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.187-1 · Debian:12Package registry (OSV)
debian:linux-6.126.12.101-1~deb12u1 · Debian:12Package 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.

—

Bug bounty scope

No known public program.

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

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

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.

Change log

  1. Fix✗ → ✓

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

References

Show all references (7 more)

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

All records