01 Record

CVE-2026-23209

macvlan: fix error recovery in macvlan_common_newlink()

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

macvlan: fix error recovery in macvlan_common_newlink()

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.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
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

0.12% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 2.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

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

2026-02-14 16:27Z6 MO AGO

Last updated

2026-08-05 12:20Z1 MO AGO

Reserved

2026-01-13

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/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

31b8f3b2382a8f383fb846fa67e47b27548ddaaa0ea9d6a8d14cd2990af2f6db

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxaa5fd0fb77486b8a6764ead8627baa14790e4280 to < da5c6b8ae47e414be47e5e04def15b25d5c962dc, aa5fd0fb77486b8a6764ead8627baa14790e4280 to < 5dae6b36a7cb7a4fcf4121b95e9ca7f96f816c8a, aa5fd0fb77486b8a6764ead8627baa14790e4280 to < c43d0e787cbba569ec9d11579ed370b50fab6c9c, aa5fd0fb77486b8a6764ead8627baa14790e4280 to < 11ba9f0dc865136174cb98834280fb21bbc950c7, aa5fd0fb77486b8a6764ead8627baa14790e4280 to < 986967a162142710076782d5b93daab93a892980, aa5fd0fb77486b8a6764ead8627baa14790e4280 to < cdedcd5aa3f3cb8b7ae0f87ab3a936d0bd583d66, aa5fd0fb77486b8a6764ead8627baa14790e4280 to < f8db6475a83649689c087a8f52486fcc53e627e9, 4.9—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/da5c6b8ae47e414be47e5e04def15b25d5c962dc
git.kernel.orghttps://git.kernel.org/stable/c/5dae6b36a7cb7a4fcf4121b95e9ca7f96f816c8a
git.kernel.orghttps://git.kernel.org/stable/c/c43d0e787cbba569ec9d11579ed370b50fab6c9c
git.kernel.orghttps://git.kernel.org/stable/c/11ba9f0dc865136174cb98834280fb21bbc950c7
git.kernel.orghttps://git.kernel.org/stable/c/986967a162142710076782d5b93daab93a892980
git.kernel.orghttps://git.kernel.org/stable/c/cdedcd5aa3f3cb8b7ae0f87ab3a936d0bd583d66
git.kernel.orghttps://git.kernel.org/stable/c/f8db6475a83649689c087a8f52486fcc53e627e9

01 Record index

CVE-2026-23209

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2026-23209

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References