CVE-2021-44421

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.44% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 36.2% 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:H/I:N/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2022-03-06 20:03Z4 YR AGO

Last updated

2024-08-04 04:25Z2 YR AGO

Reserved

2021-11-29

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-203Observable DiscrepancyBase

Data version

5.1

Document digest

a26b6940b7f125cf7b4d136c2fbf14a1f98b7cf8cb5f77d35e2527c0dc848288

• github.comhttps://github.com/occlum/occlum/blob/821ea843ae21037e6cff5268306d2da1fb131552/src/libos/src/util/mem_util.rs#L130x_refsource_MISC
• github.comhttps://github.com/occlum/occlum/blob/821ea843ae21037e6cff5268306d2da1fb131552/src/libos/src/util/mem_util.rs#L51x_refsource_MISC
• github.comhttps://github.com/occlum/occlum/commit/36918e42bf6732c4d3996bc99eb013eb6b90b249x_refsource_CONFIRM
• github.comhttps://github.com/occlum/occlum/compare/0.25.0...v0.26.0x_refsource_CONFIRM