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NVD / CVE Program· CNA Linux

CVE-2026-90105: vxlan: fix reading neigh ha

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: 0.21% (FIRST EPSS).
  • Fixed version: Linux Linux 6093baf2b2c57e7da33bacd2223570a78b416d89, 751cb520f9e47538b7223df133806a29fc41f54f, a1e86c5b4463178751a9fd3f0a3876a602dc360c.

Low priority for now. Upgrade to Linux Linux 6093baf2b2c57e7da33bacd2223570a78b416d89, 751cb520f9e47538b7223df133806a29fc41f54f, a1e86c5b4463178751a9fd3f0a3876a602dc360c 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: vxlan: fix reading neigh ha Currently arp/neigh_reduce read neigh ha directly which can lead to partial reads while the neigh is being updated. Use neigh_ha_snapshot to take a stable snapshot of the address similar to route_shortcircuit which already does the right thing.

—No exploit Fix available
Published
Sep 17, 2026
Updated
Oct 30, 2026
EPSS
0.2% · 11th 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 · 0.2%

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 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

    • 3.8affected
    • e4f67addf158f98f8197e08974966b18480dc751 and later · before a1e86c5b4463178751a9fd3f0a3876a602dc360caffected · git
    • e4f67addf158f98f8197e08974966b18480dc751 and later · before 6093baf2b2c57e7da33bacd2223570a78b416d89affected · git
    • e4f67addf158f98f8197e08974966b18480dc751 and later · before 751cb520f9e47538b7223df133806a29fc41f54faffected · git
    • e4f67addf158f98f8197e08974966b18480dc751 and later · before f43ef9a3f9c121472a0754c9e9bff13317ace0f7affected · git
    • e4f67addf158f98f8197e08974966b18480dc751 and later · before ecc8bac11a101e5f6989a14b92e17b51f9761630affected · git
    • e4f67addf158f98f8197e08974966b18480dc751 and later · before b824059a673b2283e78c7aae2c7d257aad7f0e1daffected · git
    • before 3.8not affected · semver
    • 6.1.191 and later · up to and including 6.1.*not affected · semver
    • 6.6.160 and later · up to and including 6.6.*not 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:13linuxbefore 6.12.115-26.12.115-2
Debian:14linuxbefore 7.2.6-17.2.6-1

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-2026-90103Sep 17, 2026 · NFSv4.2: fix LAYOUTSTATS send buffer exhaustion
    30Monitor
  • ← EarlierCVE-2026-90104Sep 17, 2026 · NFSv4.1: zero referring call lists before decoding
    39Monitor
  • Later →CVE-2026-90106Sep 17, 2026 · net: bridge: arp/nd proxy: fix reading neigh ha
    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 Linux6093baf2b2c57e7da33bacd2223570a78b416d89Vendor (CNA)
Linux Linux751cb520f9e47538b7223df133806a29fc41f54fVendor (CNA)
Linux Linuxa1e86c5b4463178751a9fd3f0a3876a602dc360cVendor (CNA)
Linux Linuxb824059a673b2283e78c7aae2c7d257aad7f0e1dVendor (CNA)
Linux Linuxecc8bac11a101e5f6989a14b92e17b51f9761630Vendor (CNA)
Linux Linuxf43ef9a3f9c121472a0754c9e9bff13317ace0f7Vendor (CNA)
debian:linux6.12.115-2 · Debian:13Package registry (OSV)
debian:linux7.2.6-1 · Debian:14Package 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).

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. Fix✗ → ✓

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References

Show all references (5 more)

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

All records