CVE-2021-47322

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

0.26% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 17.3% 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 13:52Z3 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-787Out-of-bounds WriteBase
• CWE-617Reachable AssertionBase

Data version

5.2

Document digest

4c0e7d44257c37f24b8d15649954b8ae733b40db9f4842d355d09ab1154fcab2

• git.kernel.orghttps://git.kernel.org/stable/c/5c7ef8a3705542136a1e19b070e951f0730b2153
• git.kernel.orghttps://git.kernel.org/stable/c/7c96a2ee45be41d5a167e6332d202086752c36bb
• git.kernel.orghttps://git.kernel.org/stable/c/7aec9f862411906f8c27071ba65a1e110ad7d2fd
• git.kernel.orghttps://git.kernel.org/stable/c/3731d44bba8e0116b052b1b374476c5f6dd9a456