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

CVE-2026-98701: wifi: mac80211: release mesh path quota on failed additions

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 019c0a91e99f0eb6c331ca63f4fa361e9bfcb089, 56691ed9ef792f180e008a43294a4dc059fbeca2, 57bfaa8b2853425ab1b83114d823a62fe63f859f; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 Release Notes; azl3 kernel 6.6.159.1-1 on Azure Linux 3.0 6.6.161.1-1.

Low priority for now. Upgrade to Linux Linux 019c0a91e99f0eb6c331ca63f4fa361e9bfcb089, 56691ed9ef792f180e008a43294a4dc059fbeca2, 57bfaa8b2853425ab1b83114d823a62fe63f859f; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 Release Notes; azl3 kernel 6.6.159.1-1 on Azure Linux 3.0 6.6.161.1-1 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: mac80211: release mesh path quota on failed additions Repeated failed or duplicate mesh path additions can exhaust MESH_MAX_MPATHS while the path table holds fewer paths, which stops new paths to reachable destinations from being created. mesh_path_add() reserves a slot before allocating and inserting a path. If allocation fails, the function returns without releasing the slot. If the rhashtable insertion reports an error or an existing destination, the function discards its candidate but retains the reservation. No new path is installed in any of these cases. Release the reservation whenever the candidate is not installed.

—No exploit Fix available
Published
Oct 18, 2026
Updated
Oct 30, 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.

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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

    • 3.10affected
    • ae76eef027f75fadd8a8eda55ee07707f077aacb and later · before 9c715919369a6bae12f03debfcf0716f5d8db1c1affected · git
    • ae76eef027f75fadd8a8eda55ee07707f077aacb and later · before 019c0a91e99f0eb6c331ca63f4fa361e9bfcb089affected · git
    • ae76eef027f75fadd8a8eda55ee07707f077aacb and later · before b5b08afe4d020acb1e6ea1021ce6fb63dedd1f46affected · git
    • ae76eef027f75fadd8a8eda55ee07707f077aacb and later · before 57bfaa8b2853425ab1b83114d823a62fe63f859faffected · git
    • ae76eef027f75fadd8a8eda55ee07707f077aacb and later · before 56691ed9ef792f180e008a43294a4dc059fbeca2affected · git
    • ae76eef027f75fadd8a8eda55ee07707f077aacb and later · before a613c891906b558c10a4fa98ca29747b98e857cbaffected · git
    • ae76eef027f75fadd8a8eda55ee07707f077aacb and later · before a59eca4557c7462aad1b160011013290a92de97daffected · git
    • ae76eef027f75fadd8a8eda55ee07707f077aacb and later · before 7325a44474f20c1393a1c114c6811abce6ddfaf4affected · git
    • before 3.10not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxfrom 0—
Debian:12linux-6.12before 6.12.113-1~deb12u16.12.113-1~deb12u1
Debian:13linuxbefore 6.12.113-16.12.113-1
Debian:14linuxbefore 7.2.10-17.2.10-1

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-2026-98699Oct 18, 2026 · wifi: mac80211: fix mesh fast xmit path deletion UAF
    0Monitor
  • ← EarlierCVE-2026-98700Oct 18, 2026 · wifi: mac80211: set info->band for 802.3 encap offload frames
    0Monitor
  • Later →CVE-2026-98702Oct 18, 2026 · wifi: mac80211: reject invalid 320 MHz CSA bandwidth
    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 Linux019c0a91e99f0eb6c331ca63f4fa361e9bfcb089Vendor (CNA)
Linux Linux56691ed9ef792f180e008a43294a4dc059fbeca2Vendor (CNA)
Linux Linux57bfaa8b2853425ab1b83114d823a62fe63f859fVendor (CNA)
Linux Linux7325a44474f20c1393a1c114c6811abce6ddfaf4Vendor (CNA)
Linux Linux9c715919369a6bae12f03debfcf0716f5d8db1c1Vendor (CNA)
Linux Linuxa59eca4557c7462aad1b160011013290a92de97dVendor (CNA)
Linux Linuxa613c891906b558c10a4fa98ca29747b98e857cbVendor (CNA)
Linux Linuxb5b08afe4d020acb1e6ea1021ce6fb63dedd1f46Vendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.0Release NotesMicrosoft (MSRC)
azl3 kernel 6.6.159.1-1 on Azure Linux 3.06.6.161.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.12.113-1 · Debian:13Package 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 7, 2026+19 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