CVE-2024-40983

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.88% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 56.5% of scored records. A rank, not a probability.

NVD base score

5.5 (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:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-08-04.

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

2024-07-12 12:33Z2 YR AGO

Last updated

2026-08-05 11:34Z1 MO AGO

Reserved

2024-07-12

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

• CWE-911Improper Update of Reference CountBase

Data version

5.2

Document digest

87c556e6b892539d5f61bc3a6576c13baea434105ffd3905e24aabc89a011a7c

• git.kernel.orghttps://git.kernel.org/stable/c/3eb1b39627892c4e26cb0162b75725aa5fcc60c8
• git.kernel.orghttps://git.kernel.org/stable/c/692803b39a36e63ac73208e0a3769ae6a2f9bc76
• git.kernel.orghttps://git.kernel.org/stable/c/623c90d86a61e3780f682b32928af469c66ec4c2
• git.kernel.orghttps://git.kernel.org/stable/c/b57a4a2dc8746cea58a922ebe31b6aa629d69d93
• git.kernel.orghttps://git.kernel.org/stable/c/6808b41371670c51feea14f63ade211e78100930
• git.kernel.orghttps://git.kernel.org/stable/c/2ebe8f840c7450ecbfca9d18ac92e9ce9155e269
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/01/msg00001.html