CVE-2026-43476

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

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

EPSS percentile

Ranks above 2.3% 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

Analyzed. NVD last modified this record on 2026-06-26.

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

2026-05-13 15:08Z3 MO AGO

Last updated

2026-08-05 12:28Z1 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-131Incorrect Calculation of Buffer SizeBase

Data version

5.2

Document digest

e662a827baf2a5a4effabcbfe5d39ee1c6644d30243dc775cbdacc3500f765e3

• git.kernel.orghttps://git.kernel.org/stable/c/9aff2e9c2927ecd9652872a43a0725f101128104
• git.kernel.orghttps://git.kernel.org/stable/c/08881d82f94deaa51800360029908863e5c4c39d
• git.kernel.orghttps://git.kernel.org/stable/c/dcdf1e92674efb6692f4ebe189e0aa9fde23a541
• git.kernel.orghttps://git.kernel.org/stable/c/2a4d111a6a34afb8bb4f118009e7728ed2ec7e10
• git.kernel.orghttps://git.kernel.org/stable/c/90e978ace598567e6e30de79805bddf37cf892ac
• git.kernel.orghttps://git.kernel.org/stable/c/165f12b40901c6a7aca15796da239726ddcdc5ad
• git.kernel.orghttps://git.kernel.org/stable/c/216345f98cae7fcc84f49728c67478ac00321c87