CVE-2021-47068

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 ImpacttotalSuccessful exploitation gives total 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

0.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 13.9% 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

Modified. NVD last modified this record on 2026-06-17.

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

2024-02-29 22:37Z2 YR AGO

Last updated

2026-08-05 08:45Z2 MO AGO

Reserved

2024-02-29

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-416Use After FreeVariant

Data version

5.2

Document digest

7868f2e77708b6d8927668a1bb5ec4fb1c03a66c35ccd75cf636e47e8867921e

• git.kernel.orghttps://git.kernel.org/stable/c/26157c82ba756767b2bd66d28a71b1bc454447f6
• git.kernel.orghttps://git.kernel.org/stable/c/ccddad6dd28530e716448e594c9ca7c76ccd0570
• git.kernel.orghttps://git.kernel.org/stable/c/18ae4a192a4496e48a5490b52812645d2413307c
• git.kernel.orghttps://git.kernel.org/stable/c/48fba458fe54cc2a980a05c13e6c19b8b2cfb610
• git.kernel.orghttps://git.kernel.org/stable/c/e32352070bcac22be6ed8ab635debc280bb65b8c
• git.kernel.orghttps://git.kernel.org/stable/c/6b7021ed36dabf29e56842e3408781cd3b82ef6e
• git.kernel.orghttps://git.kernel.org/stable/c/374cdde4dcc9c909a60713abdbbf96d5e3e09f91
• git.kernel.orghttps://git.kernel.org/stable/c/18175fe17ae043a0b81e5d511f8817825784c299
• git.kernel.orghttps://git.kernel.org/stable/c/c61760e6940dd4039a7f5e84a6afc9cdbf4d82b6