CVE-2021-47037

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 15.1% 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

2024-02-28 08:13Z2 YR AGO

Last updated

2026-05-11 13:46Z3 MO AGO

Reserved

2024-02-27

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-400Uncontrolled Resource ConsumptionClass

Data version

5.2

Document digest

f912559eba858112f7e0c65bd81775490f69c2cc7736d15430d854f6aba57077

• git.kernel.orghttps://git.kernel.org/stable/c/2202e87fc19440cecfd4f7b4f60a7d48bc2e236c
• git.kernel.orghttps://git.kernel.org/stable/c/6893df3753beafa5f7351228a9dd8157a57d7492
• git.kernel.orghttps://git.kernel.org/stable/c/62413972f5266568848a36fd15160397b211fa74
• git.kernel.orghttps://git.kernel.org/stable/c/96fadf7e8ff49fdb74754801228942b67c3eeebd
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/10/msg00007.html