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NVD / CVE Program· CNA Linux

CVE-2026-22978: wifi: avoid kernel-infoleak from struct iw_point

Noroxi assessment

Priority: Monitor (action score 13/100)

  • 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: 0.13% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 024f71a57d563fbe162e528c8bf2d27e9cac7c7b, 21cbf883d073abbfe09e3924466aa5e0449e7261, 442ceac0393185e9982323f6682a52a53e8462b1; cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0 5.15.200.1-1.

Low priority for now. Upgrade to Linux Linux 024f71a57d563fbe162e528c8bf2d27e9cac7c7b, 21cbf883d073abbfe09e3924466aa5e0449e7261, 442ceac0393185e9982323f6682a52a53e8462b1; cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0 5.15.200.1-1 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: avoid kernel-infoleak from struct iw_point struct iw_point has a 32bit hole on 64bit arches. struct iw_point { void __user *pointer; /* Pointer to the data (in user space) */ __u16 length; /* number of fields or size in bytes */ __u16 flags; /* Optional params */ }; Make sure to zero the structure to avoid disclosing 32bits of kernel data to user space.

LowCVSS 3.3 · v3.1—No exploit Fix available
Published
Jan 23, 2026
Updated
Nov 5, 2026
EPSS
0.1% · 3th percentile
CWE
—

Report tools

JSON

Action score

13

Monitor

Low priority for now.

CVSS
13 / 40 · 3.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

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-2026-22978

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

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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.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel2.6.27 and later · before 5.10.248
  • linux linux kernel5.11 and later · before 5.15.198
  • linux linux kernel5.16 and later · before 6.1.161
  • linux linux kernel6.2 and later · before 6.6.121
  • linux linux kernel6.7 and later · before 6.12.66
  • linux linux kernel6.13 and later · before 6.18.6
  • linux linux kernel6.19

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

    • 2.6.27affected
    • 87de87d5e47f94b4ea647a5bd1bc8dc1f7930db4 and later · before d943b5f592767b107ba8c12a902f17431350378caffected · git
    • 87de87d5e47f94b4ea647a5bd1bc8dc1f7930db4 and later · before a3827e310b5a73535646ef4a552d53b3c8bf74f6affected · git
    • 87de87d5e47f94b4ea647a5bd1bc8dc1f7930db4 and later · before 442ceac0393185e9982323f6682a52a53e8462b1affected · git
    • 87de87d5e47f94b4ea647a5bd1bc8dc1f7930db4 and later · before d21ec867d84c9f3a9845d7d8c90c9ce35dbe48f8affected · git
    • 87de87d5e47f94b4ea647a5bd1bc8dc1f7930db4 and later · before 024f71a57d563fbe162e528c8bf2d27e9cac7c7baffected · git
    • 87de87d5e47f94b4ea647a5bd1bc8dc1f7930db4 and later · before e3c35177103ead4658b8a62f41e3080d45885464affected · git
    • 87de87d5e47f94b4ea647a5bd1bc8dc1f7930db4 and later · before 21cbf883d073abbfe09e3924466aa5e0449e7261affected · git
    • before 2.6.27not affected · semver
    • 5.10.248 and later · up to and including 5.10.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.162-16.1.162-1
Debian:13linuxbefore 6.12.69-16.12.69-1
Debian:14linuxbefore 6.18.8-16.18.8-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2025-71160Jan 23, 2026 · netfilter: nf_tables: avoid chain re-validation if possible
    22Monitor
  • ← EarlierCVE-2025-71161Jan 23, 2026 · dm-verity: disable recursive forward error correction
    22Monitor
  • Later →CVE-2026-22979Jan 23, 2026 · net: fix memory leak in skb_segment_list for GRO packets
    22Monitor

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 Linux024f71a57d563fbe162e528c8bf2d27e9cac7c7bVendor (CNA)
Linux Linux21cbf883d073abbfe09e3924466aa5e0449e7261Vendor (CNA)
Linux Linux442ceac0393185e9982323f6682a52a53e8462b1Vendor (CNA)
Linux Linuxa3827e310b5a73535646ef4a552d53b3c8bf74f6Vendor (CNA)
Linux Linuxd21ec867d84c9f3a9845d7d8c90c9ce35dbe48f8Vendor (CNA)
Linux Linuxd943b5f592767b107ba8c12a902f17431350378cVendor (CNA)
Linux Linuxe3c35177103ead4658b8a62f41e3080d45885464Vendor (CNA)
cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.05.15.200.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.162-1 · 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.

No history yet (it accumulates with the daily EPSS job).

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

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
low · data can be read
Integrity
none
Availability
none
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
Low
Integrity impact
None
Availability impact
None

Weakness class (CWE)

—

CVSS vector

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

nvd-primary

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. SSVC exploitation— → none
  2. Fix✗ → ✓

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

References

Show all references (6 more)

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

All records