CVE-2021-47137

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

0.60% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 46.2% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/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

2024-03-25 09:07Z2 YR AGO

Last updated

2026-08-05 08:46Z1 MO AGO

Reserved

2024-03-04

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-770Allocation of Resources Without Limits or ThrottlingBase
• CWE-99Improper Control of Resource Identifiers ('Resource Injection')Class

Data version

5.2

Document digest

cbc45f4c8e59c854b2f790dfa45e7947da1e359ffceb5fb602acefa85292dd64

• git.kernel.orghttps://git.kernel.org/stable/c/8bb1077448d43a871ed667520763e3b9f9b7975d
• git.kernel.orghttps://git.kernel.org/stable/c/5ac72351655f8b033a2935646f53b7465c903418
• git.kernel.orghttps://git.kernel.org/stable/c/46dd4abced3cb2c912916f4a5353e0927db0c4a2
• git.kernel.orghttps://git.kernel.org/stable/c/c7718ee96dbc2f9c5fc3b578abdf296dd44b9c20