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CVE.org (no NVD analysis yet)· CNA Linux

CVE-2026-98351: wifi: virt_wifi: free skb when disconnected

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: 0.16% (FIRST EPSS).
  • Fixed version: Linux Linux 36727a702cf8e3399e3da60d0856378f6afcfb34, 38d3a5df85345f158f78b478b265ca906224454e, 46371442847a725cc0df3697fea2eba1dd54b82b; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.158.1-1.

Low priority for now. Upgrade to Linux Linux 36727a702cf8e3399e3da60d0856378f6afcfb34, 38d3a5df85345f158f78b478b265ca906224454e, 46371442847a725cc0df3697fea2eba1dd54b82b; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.158.1-1 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: virt_wifi: free skb when disconnected When the simulated link is disconnected, virt_wifi_start_xmit() returns NET_XMIT_DROP without freeing the skb. dev_hard_start_xmit() treats this return value as consumed, so every packet sent while disconnected leaks its skb. Free the skb before returning the drop status.

—No exploit Fix available
Published
Oct 6, 2026
Updated
Oct 19, 2026
EPSS
0.1% · 5th 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

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Follow CVE-2026-98351

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
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  • 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.

—

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

    • 5.0affected
    • c7cdba31ed8b87526db978976392802d3f93110c and later · before 38d3a5df85345f158f78b478b265ca906224454eaffected · git
    • c7cdba31ed8b87526db978976392802d3f93110c and later · before ee053ea35c759135460f03d1c574f4ed08de844aaffected · git
    • c7cdba31ed8b87526db978976392802d3f93110c and later · before d177eca79e1106834bc423d3969a4a2e3987996aaffected · git
    • c7cdba31ed8b87526db978976392802d3f93110c and later · before 36727a702cf8e3399e3da60d0856378f6afcfb34affected · git
    • c7cdba31ed8b87526db978976392802d3f93110c and later · before 56469996c10a0240653fc00576b4d33bdfb4cc51affected · git
    • c7cdba31ed8b87526db978976392802d3f93110c and later · before 4f266738af45675faa0e8afee08c6e780afa8b06affected · git
    • c7cdba31ed8b87526db978976392802d3f93110c and later · before 46371442847a725cc0df3697fea2eba1dd54b82baffected · git
    • c7cdba31ed8b87526db978976392802d3f93110c and later · before f9edf7cf63b96d2b776fca8d258d3c5256e40c8eaffected · git
    • before 5.0not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.190-16.1.190-1
Debian:12linux-6.12before 6.12.113-1~deb12u16.12.113-1~deb12u1
Debian:13linuxbefore 6.12.113-16.12.113-1
Debian:14linuxbefore 7.2.8-17.2.8-1

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-2026-98349Oct 6, 2026 · wifi: libipw: reject too-short beacon and probe responses
    28Monitor
  • ← EarlierCVE-2026-98350Oct 6, 2026 · wifi: brcmfmac: cyw: pass PMKID to firmware if present
    0Monitor
  • Later →CVE-2026-98352Oct 6, 2026 · RDMA/rtrs-clt: Fix CQ pool leak when connect is interrupted
    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 Linux36727a702cf8e3399e3da60d0856378f6afcfb34Vendor (CNA)
Linux Linux38d3a5df85345f158f78b478b265ca906224454eVendor (CNA)
Linux Linux46371442847a725cc0df3697fea2eba1dd54b82bVendor (CNA)
Linux Linux4f266738af45675faa0e8afee08c6e780afa8b06Vendor (CNA)
Linux Linux56469996c10a0240653fc00576b4d33bdfb4cc51Vendor (CNA)
Linux Linuxd177eca79e1106834bc423d3969a4a2e3987996aVendor (CNA)
Linux Linuxee053ea35c759135460f03d1c574f4ed08de844aVendor (CNA)
Linux Linuxf9edf7cf63b96d2b776fca8d258d3c5256e40c8eVendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.06.6.158.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
debian:linux6.12.113-1 · Debian:13Package registry (OSV)
debian:linux7.2.8-1 · Debian:14Package registry (OSV)
debian:linux-6.126.12.113-1~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.

  1. Published
  2. Fix recordedsame day
  3. TodayNov 9, 2026+34 d
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).

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. Exploit maturity— → none
  2. 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