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NVD / CVE Program· CNA Linux

CVE-2026-68196: wifi: wilc1000: validate assoc response length before subtracting header

Noroxi assessment

Priority: Monitor (action score 33/100)

  • 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: 0.41% (FIRST EPSS).
  • Someone on the same network segment can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 4c4c97b60a5e978121d9ee8cb0ab3916e5d6a8de, 4d410320e8ae5933e651660c9fadc1d380309e23, 584c8954ad55f8b09b475be6db710fe40ceb988c; 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 4c4c97b60a5e978121d9ee8cb0ab3916e5d6a8de, 4d410320e8ae5933e651660c9fadc1d380309e23, 584c8954ad55f8b09b475be6db710fe40ceb988c; 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: wilc1000: validate assoc response length before subtracting header wilc_parse_assoc_resp_info() computes the trailing IE length as ies_len = buffer_len - sizeof(*res); without first checking that buffer_len is at least sizeof(struct wilc_assoc_resp) (6 bytes). buffer_len is the length reported for a received association response (host_int_parse_assoc_resp_info() passes hif_drv->assoc_resp / assoc_resp_info_len straight in) and must be validated before the driver accesses the fixed header. For a frame shorter than the 6-byte fixed header, the subtraction wraps. For a four-byte response the result is truncated to a u16 ies_len of 65534, so kmemdup() then attempts to copy 65534 bytes starting at buffer + sizeof(*res), beyond the valid association-response data (CWE-125). A response shorter than four bytes can also cause an out-of-bounds read of res->status_code at offsets 2 and 3. Reject frames too short to hold the fixed header before touching the header or computing ies_len. Also set the connection status to a failure on this path: the caller falls through to a "conn_info->status == WLAN_STATUS_SUCCESS" check after the parser returns, so leaving the status untouched could let a malformed short response be treated as a successful association.

HighCVSS 8.3 · v3.1—No exploit Fix available
Published
Aug 10, 2026
Updated
Aug 19, 2026
EPSS
0.4% · 35th percentile
CWE
—

Report tools

JSON

Action score

33

Monitor

Low priority for now.

CVSS
33 / 40 · 8.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CNA vs NVD score

NVD
—
CNA · Linux
8.3
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.

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  • No public exploit code on record
  • A fix has been released

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When you'll hear from us

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  • 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

    • 4.2affected
    • c5c77ba18ea66aa05441c71e38473efb787705a4 and later · before d79b92417f33424ff23dad76716ed8f2cefb1083affected · git
    • c5c77ba18ea66aa05441c71e38473efb787705a4 and later · before b81d0ea9e1daa215b3da68c1f4f6fb07940c2f6aaffected · git
    • c5c77ba18ea66aa05441c71e38473efb787705a4 and later · before 8d50acf5420de0c4da99c2d634731c9d3164a755affected · git
    • c5c77ba18ea66aa05441c71e38473efb787705a4 and later · before 584c8954ad55f8b09b475be6db710fe40ceb988caffected · git
    • c5c77ba18ea66aa05441c71e38473efb787705a4 and later · before 4d410320e8ae5933e651660c9fadc1d380309e23affected · git
    • c5c77ba18ea66aa05441c71e38473efb787705a4 and later · before e511e93abd6eeedcd5b3c55516241f414fbde64aaffected · git
    • c5c77ba18ea66aa05441c71e38473efb787705a4 and later · before 8ccdf8c8de87a9580df37c3c1ec53ba88cedef65affected · git
    • c5c77ba18ea66aa05441c71e38473efb787705a4 and later · before 4c4c97b60a5e978121d9ee8cb0ab3916e5d6a8deaffected · git
    • before 4.2not 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-2026-68194Aug 10, 2026 · wifi: mt76: mt7921: drop TXRX_NOTIFY on non-mmio buses
    0Monitor
  • ← EarlierCVE-2026-68195Aug 10, 2026 · wifi: mt76: mt7615: drop TXRX_NOTIFY on non-mmio buses
    0Monitor
  • Later →CVE-2026-68197Aug 10, 2026 · wifi: mwifiex: fix NULL dereference when the AP has HT-cap but no HT-oper
    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 Linux4c4c97b60a5e978121d9ee8cb0ab3916e5d6a8deVendor (CNA)
Linux Linux4d410320e8ae5933e651660c9fadc1d380309e23Vendor (CNA)
Linux Linux584c8954ad55f8b09b475be6db710fe40ceb988cVendor (CNA)
Linux Linux8ccdf8c8de87a9580df37c3c1ec53ba88cedef65Vendor (CNA)
Linux Linux8d50acf5420de0c4da99c2d634731c9d3164a755Vendor (CNA)
Linux Linuxb81d0ea9e1daa215b3da68c1f4f6fb07940c2f6aVendor (CNA)
Linux Linuxd79b92417f33424ff23dad76716ed8f2cefb1083Vendor (CNA)
Linux Linuxe511e93abd6eeedcd5b3c55516241f414fbde64aVendor (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

Attack conditions

  • Someone on the same network segment 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
low · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Adjacent
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
Low
Availability impact
High

Weakness class (CWE)

—

CVSS vector

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

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