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

CVE-2026-98495: net: arp: terminate device name before lookup

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 1b08c5c3ac27c9ff91c5309f4a32b4e91ce2263b, 35e716a70733472ede300540082d64c33bf3b4c9, 414bbad9928598904313299ac9e037a73f520be1; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.159.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 1b08c5c3ac27c9ff91c5309f4a32b4e91ce2263b, 35e716a70733472ede300540082d64c33bf3b4c9, 414bbad9928598904313299ac9e037a73f520be1; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.159.1-1 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: net: arp: terminate device name before lookup The ARP ioctl copies a user-provided struct arpreq into a stack object. Its arp_dev field may contain IFNAMSIZ bytes without a NUL terminator. Such input is passed to dev_get_by_name_rcu() or __dev_get_by_name(), where strcmp() can read past the end of the stack object when a matching alternative interface name exists. Terminate the field before the lookup to prevent the out-of-bounds read.

—No exploit Fix available
Published
Oct 18, 2026
Updated
Oct 19, 2026
EPSS
0.2% · 12th 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

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

    • 5.5affected
    • 36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc and later · before ae6d704dbf9542b0a0830ec91a2db4f30307e7d8affected · git
    • 36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc and later · before 47107491b48ceef0a2faa7a010cfa961f211ef9faffected · git
    • 36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc and later · before 7389757d88f54237951d7497d9c4dae7cc6d64beaffected · git
    • 36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc and later · before 1b08c5c3ac27c9ff91c5309f4a32b4e91ce2263baffected · git
    • 36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc and later · before 414bbad9928598904313299ac9e037a73f520be1affected · git
    • 36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc and later · before ba664d83638640cf454b65167339cbf20dfd6f10affected · git
    • 36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc and later · before 35e716a70733472ede300540082d64c33bf3b4c9affected · git
    • 36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc and later · before d8b6529e80bcb4fb8177121404cbb3377acaebd2affected · git
    • before 5.5not 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 7.2.9-17.2.9-1

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-2026-98493Oct 18, 2026 · net: ipconfig: bound DHCP option construction
    0Monitor
  • ← EarlierCVE-2026-98494Oct 18, 2026 · net: atl1: fix soft lockup on out-of-range cmb_tpd_next_to_clean read
    0Monitor
  • Later →CVE-2026-98496Oct 18, 2026 · net: airoha: npu: cancel wdt_work after releasing the WDT IRQ
    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 Linux1b08c5c3ac27c9ff91c5309f4a32b4e91ce2263bVendor (CNA)
Linux Linux35e716a70733472ede300540082d64c33bf3b4c9Vendor (CNA)
Linux Linux414bbad9928598904313299ac9e037a73f520be1Vendor (CNA)
Linux Linux47107491b48ceef0a2faa7a010cfa961f211ef9fVendor (CNA)
Linux Linux7389757d88f54237951d7497d9c4dae7cc6d64beVendor (CNA)
Linux Linuxae6d704dbf9542b0a0830ec91a2db4f30307e7d8Vendor (CNA)
Linux Linuxba664d83638640cf454b65167339cbf20dfd6f10Vendor (CNA)
Linux Linuxd8b6529e80bcb4fb8177121404cbb3377acaebd2Vendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.06.6.159.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package 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 3, 2026+16 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).

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

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