Skip to content
Noroxi
CVE-2026-89949· NVD / CVE Program· CNA Linux

batman-adv: dat: avoid unaligned fault in IP extraction

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 0121afa52cdb88cfb4d5d7bd126a23a9100121d8, 0c2df865338bbf92aa45b9253e5f9b8ef2d9992f, 15dbfb37f0e1a085d48deeb8f5238e9d28127dde.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 0121afa52cdb88cfb4d5d7bd126a23a9100121d8, 0c2df865338bbf92aa45b9253e5f9b8ef2d9992f, 15dbfb37f0e1a085d48deeb8f5238e9d28127dde 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: batman-adv: dat: avoid unaligned fault in IP extraction Independent of the alignment of the ARP packet in the SKB, either the batadv_arp_ip_src or the batadv_arp_ip_dst will have an unaligned access (on HW without native unaligned read support). Use get_unaligned() to handle this properly on all architectures.

—No exploit Fix available
Published
Sep 16, 2026
Updated
Oct 19, 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

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-89949

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

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for linux records

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

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.

We use this product, ask for help

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
    • 5c3a0e5535933349a5d6e6bc8b704e0611f21d3f and later · before b1bbc694ca51adb8dbed3f3235b4fcbdb44e0e20affected · git
    • 5c3a0e5535933349a5d6e6bc8b704e0611f21d3f and later · before 15dbfb37f0e1a085d48deeb8f5238e9d28127ddeaffected · git
    • 5c3a0e5535933349a5d6e6bc8b704e0611f21d3f and later · before a170d4617e8cca05a1314de61728a262ef272782affected · git
    • 5c3a0e5535933349a5d6e6bc8b704e0611f21d3f and later · before c74a4acf41d19f21199dec2d6c813c90d31cd02caffected · git
    • 5c3a0e5535933349a5d6e6bc8b704e0611f21d3f and later · before 91c99b4e152023c7d458a5dedd52d2b0d7df4ce3affected · git
    • 5c3a0e5535933349a5d6e6bc8b704e0611f21d3f and later · before 1cfa7d5f70d54cb8c7e82df739430782d1996ee1affected · git
    • 5c3a0e5535933349a5d6e6bc8b704e0611f21d3f and later · before 0c2df865338bbf92aa45b9253e5f9b8ef2d9992faffected · git
    • 5c3a0e5535933349a5d6e6bc8b704e0611f21d3f and later · before 0121afa52cdb88cfb4d5d7bd126a23a9100121d8affected · git
    • before 3.8not 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 6.12.111-1~deb12u16.12.111-1~deb12u1
Debian:13linuxbefore 6.12.111-16.12.111-1
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-2026-89947Sep 16, 2026 · clk: meson: align gxbb_32k_clk_sel number of parents with actual count
    32Monitor
  • ← EarlierCVE-2026-89948Sep 16, 2026 · batman-adv: bla: fix freeing of claims on meshif deletion
    0Monitor
  • Later →CVE-2026-89950Sep 16, 2026 · batman-adv: mcast: linearize skbuff for packet generation
    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 Linux0121afa52cdb88cfb4d5d7bd126a23a9100121d8Vendor (CNA)
Linux Linux0c2df865338bbf92aa45b9253e5f9b8ef2d9992fVendor (CNA)
Linux Linux15dbfb37f0e1a085d48deeb8f5238e9d28127ddeVendor (CNA)
Linux Linux1cfa7d5f70d54cb8c7e82df739430782d1996ee1Vendor (CNA)
Linux Linux91c99b4e152023c7d458a5dedd52d2b0d7df4ce3Vendor (CNA)
Linux Linuxa170d4617e8cca05a1314de61728a262ef272782Vendor (CNA)
Linux Linuxb1bbc694ca51adb8dbed3f3235b4fcbdb44e0e20Vendor (CNA)
Linux Linuxc74a4acf41d19f21199dec2d6c813c90d31cd02cVendor (CNA)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
debian:linux6.12.111-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.111-1~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

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✗ → ✓

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