CVE-2026-63995

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

0.13% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 2.8% 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

Awaiting Analysis. NVD last modified this record on 2026-07-30.

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

2026-07-19 14:56Z1 MO AGO

Last updated

2026-08-05 12:37Z1 MO AGO

Reserved

2026-07-19

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-787Out-of-bounds WriteBase

Data version

5.2

Document digest

757ba0a6001dad4a204551a1e92daa2fd25a7df089e7de4c6873e6444c0ed9d1

• git.kernel.orghttps://git.kernel.org/stable/c/63112b4515469d00008452d9cfe3fb3bf1aa2df3
• git.kernel.orghttps://git.kernel.org/stable/c/0696709e951be54c699664adf546d16e28974d53
• git.kernel.orghttps://git.kernel.org/stable/c/a46340da00385be7fb16c62425ebc20006f2d5d8
• git.kernel.orghttps://git.kernel.org/stable/c/12c2496a71f82f63617971ca9b730dffa05cf58b