01 Record

CVE-2026-80681

vxlan: re-fetch eth header after route_shortcircuit()

CriticalPUBLISHEDCNA: Linux

CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

vxlan: re-fetch eth header after route_shortcircuit()

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.50% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 42.5% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Received. NVD last modified this record on 2026-10-16.

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

2026-08-28 06:52Z2 MO AGO

Last updated

2026-10-16 19:26Z12 DAYS AGO

Reserved

2026-08-26

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

CWE-825Expired Pointer DereferenceBase

Data version

5.2

Document digest

6add3efdc25c55c519e3c1f0083ac64181e148dd868cc5cf379babf1f8e40278

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxae8840825605f36f98f247323edc150e761cb64e to < 6375093eb45cd7d89f1945f939eeae3b29d79f56, ae8840825605f36f98f247323edc150e761cb64e to < 1b7f7b653e3557690047c62f03b80a24ea5a58a5, ae8840825605f36f98f247323edc150e761cb64e to < bf045341dfb3e767f0ff94cf240ce3c371973bd4, ae8840825605f36f98f247323edc150e761cb64e to < 2355c8c26d2aa1b4385b369e67202e47d460d555, ae8840825605f36f98f247323edc150e761cb64e to < 1511631b7cfc4152b10a0a9d04c7a0bf2ddf4585, ae8840825605f36f98f247323edc150e761cb64e to < 1235e017aa11cf01e91b613c4c5ed6aa28934fff, ae8840825605f36f98f247323edc150e761cb64e to < c9dceac9e1c7c772c43c732fc0d325e72835801a, ae8840825605f36f98f247323edc150e761cb64e to < 1395a676ec15a0a02a2a6d86602324f2d5fd41d5, 3.10—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/6375093eb45cd7d89f1945f939eeae3b29d79f56
git.kernel.orghttps://git.kernel.org/stable/c/1b7f7b653e3557690047c62f03b80a24ea5a58a5
git.kernel.orghttps://git.kernel.org/stable/c/bf045341dfb3e767f0ff94cf240ce3c371973bd4
git.kernel.orghttps://git.kernel.org/stable/c/2355c8c26d2aa1b4385b369e67202e47d460d555
git.kernel.orghttps://git.kernel.org/stable/c/1511631b7cfc4152b10a0a9d04c7a0bf2ddf4585
git.kernel.orghttps://git.kernel.org/stable/c/1235e017aa11cf01e91b613c4c5ed6aa28934fff
git.kernel.orghttps://git.kernel.org/stable/c/c9dceac9e1c7c772c43c732fc0d325e72835801a
git.kernel.orghttps://git.kernel.org/stable/c/1395a676ec15a0a02a2a6d86602324f2d5fd41d5

07 Fixed in

Debian 12

linux
Fixed in 6.1.187-1
linux-6.12
Fixed in 6.12.107-1~deb12u1

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

Debian 13

linux
Fixed in 6.12.105-1

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

Debian 14

linux
Fixed in 7.1.8-1

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