CVE-2026-63915

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

0.35% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 28.1% 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

Awaiting Analysis. NVD last modified this record on 2026-07-27.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2026-07-19 14:55Z1 MO AGO

Last updated

2026-08-05 12:37Z1 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-125Out-of-bounds ReadBase

Data version

5.2

Document digest

c63ff9ef681d984f0b00106227f4069c2def3dfb7bdecabff0a7fbd9456d32c1

• git.kernel.orghttps://git.kernel.org/stable/c/ed6d5d97dad0334a7f43d218753429cbe2f70a4f
• git.kernel.orghttps://git.kernel.org/stable/c/b99366d74b535d0cadb1ef73e04639415d9ff3b7
• git.kernel.orghttps://git.kernel.org/stable/c/37382293f174b82a0616c8295e32b1fc8e13d1ed
• git.kernel.orghttps://git.kernel.org/stable/c/c4cc6b3b0013acb3ed0b2b60e57dfae98647fe98
• git.kernel.orghttps://git.kernel.org/stable/c/1905f5ec3641b2b234bb63549c8ca11ab85466eb
• git.kernel.orghttps://git.kernel.org/stable/c/22d41b176b9989efd21c3b2d3abf6728f05b9d9a
• git.kernel.orghttps://git.kernel.org/stable/c/83b1362edc9d6ae376c6f36da116e2c70f2e70a6
• git.kernel.orghttps://git.kernel.org/stable/c/f040e590c035bfd9553fe79ee9585caf1b14d67b