9.8

CVE-2026-72226: linux

CVSS: 9.8v3.1CriticalReceived
AliasesUBUNTU-CVE-2026-72226DEBIAN-CVE-2026-72226
Published 15-08-2026Last modified 16-10-2026
Open JSON

Vulnerability summary

CVE-2026-72226 is a critical (CVSS 9.8) vulnerability in linux. EPSS estimates a 0.76% chance of exploitation in the next 30 days, higher than 54.3% 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
0.76%
0%100%
Low · +0.05 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 15 · Related 15
USN-8781-1USN-8816-1USN-8816-2USN-8816-3USN-8816-4USN-8875-1

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: tt: prevent TVLV OOB check overflow A TT unicast TVLV contains the number of VLANs stored in it. This number is an u16 and gets multiplied by the size of the struct batadv_tvlv_tt_vlan_data (8 bytes). The size can therefore overflow the u16 used to store the tt_vlan_len. All additional safety checks to prevent out-of-bounds access of the TVLV buffer are invalid due to this overflow. Using size_t prevents this overflow and ensures that the safety checks compare against the actual buffer requirements.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.76%

Chance of exploitation in the next 30 days

Percentile

54%

Versus all other CVEs

30-day change

+0.05 pp

From 0.70% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.76%

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≥ 7ea7b4a142758deaf46c1af0ca9ceca6dd55138b, < 0de12a4c4847f571d82a9cd96bc633eded41d7c6 | ≥ 7ea7b4a142758deaf46c1af0ca9ceca6dd55138b, < d6ff4764ff784ede25f5c83a6f5883a74c93a5ea | ≥ 7ea7b4a142758deaf46c1af0ca9ceca6dd55138b, < 1898273c5dc8148267ef9f97cd2517a2822350e7 | ≥ 7ea7b4a142758deaf46c1af0ca9ceca6dd55138b, < 604bd5042fbcd1ab9f7cd98fd847ec017aeede8a | ≥ 7ea7b4a142758deaf46c1af0ca9ceca6dd55138b, < 7319c0794f91be2734aac695794e7203606b49f8 | ≥ 7ea7b4a142758deaf46c1af0ca9ceca6dd55138b, < 3256c05d5a9db34346eaf20f52dddde984852d77 | ≥ 7ea7b4a142758deaf46c1af0ca9ceca6dd55138b, < 6222b443686525cb5a9b6a9cecf23b2e2ab23e2a | ≥ 7ea7b4a142758deaf46c1af0ca9ceca6dd55138b, < 7a581d9aaba8c82bd6177fa36b2588eea77f6e2b | 3.13

3 vendors · 171 products

References

27 links
Show all 27 references