01 Record

CVE-2026-64096

batman-adv: mcast: fix use-after-free in orig_node RCU release

HighPUBLISHEDCNA: Linux

CNA base score8.8 CVSS v3.xCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

batman-adv: mcast: fix use-after-free in orig_node RCU release

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.25% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 16.9% of scored records. A rank, not a probability.
NVD base score: 8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status: Analyzed. NVD last modified this record on 2026-08-11.
Red Hat severity: Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-07-19 15:40Z3 MO AGO

Last updated

2026-08-05 12:39Z2 MO AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-416Use After FreeVariant
CWE-825Expired Pointer DereferenceBase

Data version

5.2

Document digest

67ff8f92b8f94bd7b6af46c18f800b19220a26255f445e9494e35865856ba3c5

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxab49886e3da73b6b35ece21006e191910427bb30 to < ff3a4487ead475e27b43280b8ee3d8464fe280e1, ab49886e3da73b6b35ece21006e191910427bb30 to < 78a63fb2f7d5630d1c1f2859a20d4e4226863b41, ab49886e3da73b6b35ece21006e191910427bb30 to < ced48f55bac73f0822eae90509e51b42b4f646c8, ab49886e3da73b6b35ece21006e191910427bb30 to < 70bcb678561f0fb58f33270fc73f12f3be72b878, ab49886e3da73b6b35ece21006e191910427bb30 to < aef897c9d2dd0d9339167fb82b62beff68d076cb, ab49886e3da73b6b35ece21006e191910427bb30 to < 8a3707653ab658e082ccd992e92594e01b09a3fc, ab49886e3da73b6b35ece21006e191910427bb30 to < edfb1e094104a50f931553dc82ac59246569fd32, ab49886e3da73b6b35ece21006e191910427bb30 to < 20c2d6a20ca936f5aaa6dd40f73f262ac45c87cc, 3.15—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/ff3a4487ead475e27b43280b8ee3d8464fe280e1
git.kernel.orghttps://git.kernel.org/stable/c/78a63fb2f7d5630d1c1f2859a20d4e4226863b41
git.kernel.orghttps://git.kernel.org/stable/c/ced48f55bac73f0822eae90509e51b42b4f646c8
git.kernel.orghttps://git.kernel.org/stable/c/70bcb678561f0fb58f33270fc73f12f3be72b878
git.kernel.orghttps://git.kernel.org/stable/c/aef897c9d2dd0d9339167fb82b62beff68d076cb
git.kernel.orghttps://git.kernel.org/stable/c/8a3707653ab658e082ccd992e92594e01b09a3fc
git.kernel.orghttps://git.kernel.org/stable/c/edfb1e094104a50f931553dc82ac59246569fd32
git.kernel.orghttps://git.kernel.org/stable/c/20c2d6a20ca936f5aaa6dd40f73f262ac45c87cc

07 Fixed in

Debian 12

linux
Fixed in 6.1.176-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.94-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 7.0.12-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.