CVE-2021-47173

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

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

EPSS percentile

Ranks above 13.4% 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 2026-06-17.

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

2024-03-25 09:16Z2 YR AGO

Last updated

2026-05-11 13:49Z3 MO AGO

Reserved

2024-03-25

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-401Missing Release of Memory after Effective LifetimeVariant
• CWE-402Transmission of Private Resources into a New Sphere ('Resource Leak')Class

Data version

5.2

Document digest

eac1eea785416c6dedb15cfc50a06f7fd24486197fe46c36c0399643db934355

• git.kernel.orghttps://git.kernel.org/stable/c/5f46b2410db2c8f26b8bb91b40deebf4ec184391
• git.kernel.orghttps://git.kernel.org/stable/c/7889c70e6173ef358f3cd7578db127a489035a42
• git.kernel.orghttps://git.kernel.org/stable/c/bcb30cc8f8befcbdbcf7a016e4dfd4747c54a364
• git.kernel.orghttps://git.kernel.org/stable/c/386918878ce4cd676e4607233866e03c9399a46a
• git.kernel.orghttps://git.kernel.org/stable/c/36b5ff1db1a4ef4fdbc2bae364344279f033ad88
• git.kernel.orghttps://git.kernel.org/stable/c/5394ae9d8c7961dd93807fdf1b12a1dde96b0a55
• git.kernel.orghttps://git.kernel.org/stable/c/a3c3face38cb49932c62adcc1289914f1c742096
• git.kernel.orghttps://git.kernel.org/stable/c/dcb4b8ad6a448532d8b681b5d1a7036210b622de