CVE-2021-47082

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

0.25% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 16.4% 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

Low. 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 18:06Z2 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-415Double FreeVariant

Data version

5.2

Document digest

8aaa157765f5e90b9bba1c837609f9484b491c7ec48a8691a99890ab6022085a

• git.kernel.orghttps://git.kernel.org/stable/c/8eb43d635950e27c29f1e9e49a23b31637f37757
• git.kernel.orghttps://git.kernel.org/stable/c/0c0e566f0387490d16f166808c72e9c772027681
• git.kernel.orghttps://git.kernel.org/stable/c/a01a4e9f5dc93335c716fa4023b1901956e8c904
• git.kernel.orghttps://git.kernel.org/stable/c/3cb5ae77799e8ed6ec3fec0b6b4cd07f01650cc5
• git.kernel.orghttps://git.kernel.org/stable/c/158b515f703e75e7d68289bf4d98c664e1d632df