CVE-2026-64090

CVE-2026-64090

Medium · published July 19, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
2.2
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

batman-adv: tt: avoid empty VLAN responses

The commit 16116dac2339 ("batman-adv: prevent TT request storms by not

sending inconsistent TT TLVLs") added checks to the local (direct) TT

response code. But the response can also be done indirectly by another node

using the global TT state. To avoid such inconsistency states reported in

the original fix, also avoid sending empty VLANs for replies from the

global TT state.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00128 · 2.2th percentile
Published
2026-07-19T20:17Z
Affected products (11)
ProductVersionsFixed in
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernel≥ 3.13, < 5.10.2595.10.259
linux/linux_kernel≥ 5.11, < 5.15.2105.15.210
linux/linux_kernel≥ 5.16, < 6.1.1766.1.176
linux/linux_kernel≥ 6.2, < 6.6.1436.6.143
linux/linux_kernel≥ 6.7, < 6.12.936.12.93
linux/linux_kernel≥ 6.13, < 6.18.346.18.34
linux/linux_kernel≥ 6.19, < 7.0.117.0.11
linux/linux_kernelall versions—
References (8)
EPSS history
Timeline
  • 19 JUL 15:39Z
    batman-adv: tt: avoid empty VLAN responses
    cvelistv5