CVE-2021-47516

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

0.24% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 15.2% 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

2024-05-24 15:09Z2 YR AGO

Last updated

2026-05-11 13:56Z3 MO AGO

Reserved

2024-05-24

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-400Uncontrolled Resource ConsumptionClass

Data version

5.2

Document digest

32470fdace30801d0e587af7bb36b03341cf33ad1db414a84bc078578eeb407f

• git.kernel.orghttps://git.kernel.org/stable/c/3e93abcdcec0436fbf0b6a88ae806902426895a2
• git.kernel.orghttps://git.kernel.org/stable/c/eb51f639ef3fd5498b7def290ed8681b6aadd9a7
• git.kernel.orghttps://git.kernel.org/stable/c/2e0e072e62fdaf7816220af08e05c020f0fcb77a
• git.kernel.orghttps://git.kernel.org/stable/c/484069b5de9d223cc1c64c6f80389a99cfef51f1
• git.kernel.orghttps://git.kernel.org/stable/c/f707820c09239d6f67699d9b2ff57863cc7905b0
• git.kernel.orghttps://git.kernel.org/stable/c/c56c96303e9289cc34716b1179597b6f470833de