CVE-2021-46943

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

0.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 14.4% 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

Modified. 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

2024-02-27 18:40Z2 YR AGO

Last updated

2026-05-11 13:44Z3 MO AGO

Reserved

2024-02-25

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-131Incorrect Calculation of Buffer SizeBase

Data version

5.2

Document digest

fa7112d371db2d3256f3398464e85639bcc27ff1d40bbc8e9ac2f176c14dbcc5

• git.kernel.orghttps://git.kernel.org/stable/c/a03fb1e8a110658215a4cefc3e2ad53279e496a6
• git.kernel.orghttps://git.kernel.org/stable/c/c6b81b897f6f9445d57f8d47c4e060ec21556137
• git.kernel.orghttps://git.kernel.org/stable/c/34892ea938387d83ffcfb7775ec55f0f80767916
• git.kernel.orghttps://git.kernel.org/stable/c/6fb617e37a39db0a3eca4489431359d0bdf3b9bc
• git.kernel.orghttps://git.kernel.org/stable/c/ad91849996f9dd79741a961fd03585a683b08356