CVE-2021-47103

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

0.95% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 61.0% 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 2026-08-04.

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

2024-03-04 18:10Z2 YR AGO

Last updated

2026-08-05 08:46Z2 MO AGO

Reserved

2024-02-29

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-416Use After FreeVariant

Data version

5.2

Document digest

6a4fa6d3ea676052df5ed3e59f7a4527835f9e9bd5c1f469bc4ac7caab476941

• git.kernel.orghttps://git.kernel.org/stable/c/68c34ce11ef23328692aa35fa6aaafdd75913100
• git.kernel.orghttps://git.kernel.org/stable/c/92e6e36ecd16808866ac6172b9491b5097cde449
• git.kernel.orghttps://git.kernel.org/stable/c/75a578000ae5e511e5d0e8433c94a14d9c99c412
• git.kernel.orghttps://git.kernel.org/stable/c/c3bb4a7e8cbc984e1cdac0fe6af60e880214ed6e
• git.kernel.orghttps://git.kernel.org/stable/c/f039b43cbaea5e0700980c2f0052da05a70782e0
• git.kernel.orghttps://git.kernel.org/stable/c/0249a4b8a554f2eb6a27b62516fa50168584faa4
• git.kernel.orghttps://git.kernel.org/stable/c/8f905c0e7354ef261360fb7535ea079b1082c105