CVE-2026-43303

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

0.17% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 6.1% 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 2026-06-19.

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.

Published

2026-05-08 13:11Z3 MO AGO

Last updated

2026-08-05 12:27Z1 MO AGO

Reserved

2026-05-01

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-909Missing Initialization of ResourceClass

Data version

5.2

Document digest

38f843901a31334aef345a21f5770e2465abaabf4b9594913228056b94a9bc42

• git.kernel.orghttps://git.kernel.org/stable/c/e7790ab165713b79b1617ce659742ceb3a859d05
• git.kernel.orghttps://git.kernel.org/stable/c/3edb8ebbf79b9016040e8f3421d723ae3d542b32
• git.kernel.orghttps://git.kernel.org/stable/c/f9719e32a67b4b00b3c9b133e8b5ffa72a26b67b
• git.kernel.orghttps://git.kernel.org/stable/c/23b82b7a26182ad840ae67d390d7ec9771e8c00f
• git.kernel.orghttps://git.kernel.org/stable/c/d757c793853ec5483eb41ec2942c300b8fa720fb
• git.kernel.orghttps://git.kernel.org/stable/c/ac1ea219590c09572ed5992dc233bbf7bb70fef9