CVE-2021-47280

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

0.18% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 8.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:L/AC:H/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 14:20Z2 YR AGO

Last updated

2026-05-11 13:51Z3 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-367Time-of-check Time-of-use (TOCTOU) Race ConditionBase
• CWE-416Use After FreeVariant
• CWE-825Expired Pointer DereferenceBase

Data version

5.2

Document digest

879ba9c7150e9d2e2831ef28af50b41e81237a7f50a71c3a7774ba49f100399b

• git.kernel.orghttps://git.kernel.org/stable/c/17dab9326ff263c62dab1dbac4492e2938a049e4
• git.kernel.orghttps://git.kernel.org/stable/c/7d233ba700ceb593905ea82b42dadb4ec8ef85e9
• git.kernel.orghttps://git.kernel.org/stable/c/b246b4c70c1250e7814f409b243000f9c0bf79a3
• git.kernel.orghttps://git.kernel.org/stable/c/491d52e0078860b33b6c14f0a7ac74ca1b603bd6
• git.kernel.orghttps://git.kernel.org/stable/c/f773f8cccac13c7e7bbd9182e7996c727742488e
• git.kernel.orghttps://git.kernel.org/stable/c/b436acd1cf7fac0ba987abd22955d98025c80c2b