9.8

CVE-2026-72234: linux

CVSS: 9.8v3.1CriticalReceived
AliasesUBUNTU-CVE-2026-72234DEBIAN-CVE-2026-72234
Published 15-08-2026Last modified 16-10-2026
Open JSON

Vulnerability summary

CVE-2026-72234 is a critical (CVSS 9.8) vulnerability in linux. EPSS estimates a 0.73% chance of exploitation in the next 30 days, higher than 53.5% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.73%
0%100%
Low · +0.06 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 20 · Related 20
OPENSUSE-SU-2026:21910-1SUSE-SU-2026:23881-1SUSE-SU-2026:23887-1SUSE-SU-2026:23897-1SUSE-SU-2026:23902-1USN-8781-1

Timeline

  1. 15-08-2026
    PublishedVulnerability first disclosed.
  2. 16-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: batman-adv: access unicast_ttvn skb->data only after skb realloc The pskb_may_pull() called by batadv_get_vid() could reallocate the buffer behind the skb. Variables which were pointing to the old buffer need to be reassigned to avoid an use-after-free. This was done correctly for the ethernet header but missed for the unicast_packet pointer.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.73%

Chance of exploitation in the next 30 days

Percentile

54%

Versus all other CVEs

30-day change

+0.06 pp

From 0.68% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.73%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu169 products
  • linuxAll versions (No fix recorded) | < 5.15.0-198.208 | < 6.8.0-147.147 | < 7.0.0-34.34
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1117.124 | < 6.8.0-1067.70 | < 7.0.0-1013.13
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.180-1 | < 6.12.100-1 | < 7.1.5-1
Linux1 product
  • linux≥ c018ad3de61a1dc4194879a53e5559e094aa7b1a, < aa9558af859934f24717d4bab97d61004f91a736 | ≥ c018ad3de61a1dc4194879a53e5559e094aa7b1a, < 9c2c05629e46c1fd43931506d41c56a885a98eb4 | ≥ c018ad3de61a1dc4194879a53e5559e094aa7b1a, < 7b162b36de750565404cd3b98315706622c6974f | ≥ c018ad3de61a1dc4194879a53e5559e094aa7b1a, < ed90eb5c68420cdfe67ec1f773324198d2ef6f50 | ≥ c018ad3de61a1dc4194879a53e5559e094aa7b1a, < 979175834a699ccc3c4c0b0ba60ecae0f135a587 | ≥ c018ad3de61a1dc4194879a53e5559e094aa7b1a, < b8afcf799b2cc92c41beebd029e53ed18960184a | ≥ c018ad3de61a1dc4194879a53e5559e094aa7b1a, < 9a7b7248798123efbd5fafe58461d57c7cc718af | ≥ c018ad3de61a1dc4194879a53e5559e094aa7b1a, < 7141990add3f75436f2933cb310654cad3b1e3e9 | 3.13

3 vendors · 171 products

References

27 links
Show all 27 references