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

CVE-2026-98185: wifi: mwifiex: validate scan response extents

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: 0.17% (FIRST EPSS).
  • Fixed version: Linux Linux 25217c5f6ce0bf3004f80c129464cd35fe9a420f, 3687d7d48070838cc2953431b3a27717cab0aaf6, 48312f0085aa1577d6d41af2a079b34de17c1a57; 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 25217c5f6ce0bf3004f80c129464cd35fe9a420f, 3687d7d48070838cc2953431b3a27717cab0aaf6, 48312f0085aa1577d6d41af2a079b34de17c1a57; 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: mwifiex: validate scan response extents mwifiex_ret_802_11_scan() subtracts the fixed response fields and the firmware-provided BSS length from resp->size without first proving that either extent fits. A short response or oversized BSS length can therefore underflow tlv_buf_size and make the TLV parser walk beyond the command response. Compute the fixed extent from the selected normal or background scan response. Validate that the fixed fields and BSS data fit before deriving the TLV extent and entering the parser.

—No exploit Fix available
Published
Oct 6, 2026
Updated
Oct 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

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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

    • 3.0affected
    • 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e and later · before 25217c5f6ce0bf3004f80c129464cd35fe9a420faffected · git
    • 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e and later · before 48312f0085aa1577d6d41af2a079b34de17c1a57affected · git
    • 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e and later · before dccf5ecaad4d8d43c545921f20328e8f91af8698affected · git
    • 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e and later · before c4943323fda22ef27bb6479b9d328ae48c63f64caffected · git
    • 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e and later · before cb0008480ed7d5cf76f3ad9668a91bbb7d0b4417affected · git
    • 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e and later · before 9cff2f39ed38a32070b08364c4c9346e85b8f9ecaffected · git
    • 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e and later · before 7106ad8b74f50cca1ef36131f327d2c78f556daaaffected · git
    • 5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e and later · before 3687d7d48070838cc2953431b3a27717cab0aaf6affected · git
    • before 3.0not 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-2026-98183Oct 6, 2026 · wifi: mac80211: avoid out-of-bounds read for empty PREQ elements
    0Monitor
  • ← EarlierCVE-2026-98184Oct 6, 2026 · wifi: mwifiex: prevent authentication frame length truncation
    0Monitor
  • Later →CVE-2026-98186Oct 6, 2026 · wifi: mwifiex: bound the pairwise-cipher OUI walk to the IE length
    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 Linux25217c5f6ce0bf3004f80c129464cd35fe9a420fVendor (CNA)
Linux Linux3687d7d48070838cc2953431b3a27717cab0aaf6Vendor (CNA)
Linux Linux48312f0085aa1577d6d41af2a079b34de17c1a57Vendor (CNA)
Linux Linux7106ad8b74f50cca1ef36131f327d2c78f556daaVendor (CNA)
Linux Linux9cff2f39ed38a32070b08364c4c9346e85b8f9ecVendor (CNA)
Linux Linuxc4943323fda22ef27bb6479b9d328ae48c63f64cVendor (CNA)
Linux Linuxcb0008480ed7d5cf76f3ad9668a91bbb7d0b4417Vendor (CNA)
Linux Linuxdccf5ecaad4d8d43c545921f20328e8f91af8698Vendor (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 6, 2026+32 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