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NVD / CVE Program· CNA Linux

CVE-2026-72230: batman-adv: frag: free unfragmentable packet

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: 0.22% (FIRST EPSS).
  • Fixed version: Linux Linux 04ccbed8179e7d4d0906d00939300ddc5b48ce7e, 08047838817561cef33ada9774a2a4663d499ecb, 59e1da1ab354d1f2b7bab8d44f846262f990ad9d.

Low priority for now. Upgrade to Linux Linux 04ccbed8179e7d4d0906d00939300ddc5b48ce7e, 08047838817561cef33ada9774a2a4663d499ecb, 59e1da1ab354d1f2b7bab8d44f846262f990ad9d 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: frag: free unfragmentable packet The caller of batadv_frag_send_packet() assume that the skb provided to the function are always consumed. But the pre-check for an empty payload or the zero fragment size returned an error without any further actions. A failed pre-check must use the same error handling code as the rest of the function.

—No exploit Fix available
Published
Aug 15, 2026
Updated
Nov 6, 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%

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-2026-72230

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.

—

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

    • 3.13affected
    • ee75ed88879af88558818a5c6609d85f60ff0df4 and later · before a5155aeeae8ead3c6081f7f197608033e4dcfe75affected · git
    • ee75ed88879af88558818a5c6609d85f60ff0df4 and later · before 04ccbed8179e7d4d0906d00939300ddc5b48ce7eaffected · git
    • ee75ed88879af88558818a5c6609d85f60ff0df4 and later · before 601dff01a03ecced59938cdd69eeb2c66e4158f2affected · git
    • ee75ed88879af88558818a5c6609d85f60ff0df4 and later · before 740542f11bf8c86411c429fbd7f84fc6bee80e76affected · git
    • ee75ed88879af88558818a5c6609d85f60ff0df4 and later · before 59e1da1ab354d1f2b7bab8d44f846262f990ad9daffected · git
    • ee75ed88879af88558818a5c6609d85f60ff0df4 and later · before 8f54162e07d3eea1e4ff21464cf2a815d79b6510affected · git
    • ee75ed88879af88558818a5c6609d85f60ff0df4 and later · before 08047838817561cef33ada9774a2a4663d499ecbaffected · git
    • ee75ed88879af88558818a5c6609d85f60ff0df4 and later · before 6b628425aed49a1c7a4ffc997583840fc582d32baffected · git
    • before 3.13not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.180-16.1.180-1
Debian:13linuxbefore 6.12.100-16.12.100-1
Debian:14linuxbefore 7.1.5-17.1.5-1

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-2026-72228Aug 15, 2026 · batman-adv: frag: fix primary_if leak on failed linearization
    0Monitor
  • ← EarlierCVE-2026-72229Aug 15, 2026 · batman-adv: clean untagged VLAN on netdev registration failure
    0Monitor
  • Later →CVE-2026-72231Aug 15, 2026 · batman-adv: tt: avoid request storms during pending request
    30Monitor

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 Linux04ccbed8179e7d4d0906d00939300ddc5b48ce7eVendor (CNA)
Linux Linux08047838817561cef33ada9774a2a4663d499ecbVendor (CNA)
Linux Linux59e1da1ab354d1f2b7bab8d44f846262f990ad9dVendor (CNA)
Linux Linux601dff01a03ecced59938cdd69eeb2c66e4158f2Vendor (CNA)
Linux Linux6b628425aed49a1c7a4ffc997583840fc582d32bVendor (CNA)
Linux Linux740542f11bf8c86411c429fbd7f84fc6bee80e76Vendor (CNA)
Linux Linux8f54162e07d3eea1e4ff21464cf2a815d79b6510Vendor (CNA)
Linux Linuxa5155aeeae8ead3c6081f7f197608033e4dcfe75Vendor (CNA)
debian:linux6.1.180-1 · 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.

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. SSVC exploitation— → 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