CVE-2021-47357

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

Ranks above 16.1% 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

Analyzed. 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

2024-05-21 14:35Z2 YR AGO

Last updated

2026-05-11 13:53Z3 MO AGO

Reserved

2024-05-21

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-416Use After FreeVariant

Data version

5.2

Document digest

c3034af531b6e4769814829d175cb0a0aa0263ed1de7b9cd9b760299cf6b08c1

• git.kernel.orghttps://git.kernel.org/stable/c/9e161687855175334ca93c6c3ccb221731194479
• git.kernel.orghttps://git.kernel.org/stable/c/a832ee2f2145f57443b2d565f8cb5490e8339f42
• git.kernel.orghttps://git.kernel.org/stable/c/bcdd2be48edd8c6867fb44112cb8d18086beae29
• git.kernel.orghttps://git.kernel.org/stable/c/89ce0b0747f319eb70f85bc820dcc43cebbd5417
• git.kernel.orghttps://git.kernel.org/stable/c/c9172498d4d62c9b64e5fb37c1ee0343e65fe51b
• git.kernel.orghttps://git.kernel.org/stable/c/e759ff76ebbbfcdcf83b6634c54dc47828573d8b
• git.kernel.orghttps://git.kernel.org/stable/c/b58d246a058ae88484758cd4ab27b3180fd5ecf8
• git.kernel.orghttps://git.kernel.org/stable/c/d1fb12412874c94ad037e11d0ecdd1140a439297
• git.kernel.orghttps://git.kernel.org/stable/c/1c72e6ab66b9598cac741ed397438a52065a8f1f