CVE-2026-63917

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 6.3% 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:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

NVD analysis status

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

Red Hat severity

Important. 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

2026-07-19 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:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Weaknesses

• CWE-825Expired Pointer DereferenceBase

Data version

5.2

Document digest

794320b50726571205f215c96cffe42a88a297392e6b6507d7dbf445c5559239

• git.kernel.orghttps://git.kernel.org/stable/c/0cdce7618464f7fb06f461e8f4ad575cb1d570f4
• git.kernel.orghttps://git.kernel.org/stable/c/f5c68875e25f331e497ddfbe81e2d8163a87f136
• git.kernel.orghttps://git.kernel.org/stable/c/d9c5eecdb3c740e65038651db7c686b10d76d1bc
• git.kernel.orghttps://git.kernel.org/stable/c/f1e89a943ee574d0f2f16246eb3f2d7330fdeb03
• git.kernel.orghttps://git.kernel.org/stable/c/225b467e3b631f38be22e4b38062a1fed02fdd21
• git.kernel.orghttps://git.kernel.org/stable/c/fc32be9ac2788524c6b24efd681cce7a6e731a92
• git.kernel.orghttps://git.kernel.org/stable/c/ee1778ba0f5cb53be771f97017d01eb356c797bf
• git.kernel.orghttps://git.kernel.org/stable/c/11b326fb0a374f4654f9be22d0f0f7abd9f7d3fe