CVE-2021-47267

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

0.68% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 50.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

NVD analysis status

Analyzed. 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

2024-05-21 14:19Z2 YR AGO

Last updated

2026-05-11 13:51Z3 MO AGO

Reserved

2024-05-21

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Medium (CVSS 6.3)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Weaknesses

• CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

a7718eabce7e9088fdf1df6e16e9595155652d6cfba7c9bffc1d1b2b0a92be4f

• git.kernel.orghttps://git.kernel.org/stable/c/fd24be23abf3e94260be0f00bb42c7e91d495f87
• git.kernel.orghttps://git.kernel.org/stable/c/70cd19cb5bd94bbb5bacfc9c1e4ee0071699a604
• git.kernel.orghttps://git.kernel.org/stable/c/45f9a2fe737dc0a5df270787f2231aee8985cd59
• git.kernel.orghttps://git.kernel.org/stable/c/5ef23506695b01d5d56a13a092a97f2478069d75
• git.kernel.orghttps://git.kernel.org/stable/c/b972eff874637402ddc4a7dd11fb22538a0b6d28
• git.kernel.orghttps://git.kernel.org/stable/c/ca6bc277430d90375452b60b047763a090b7673e
• git.kernel.orghttps://git.kernel.org/stable/c/032e288097a553db5653af552dd8035cd2a0ba96