CVE-2021-36408

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

0.83% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 55.1% 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:N/UI:R/S:U/C:N/I:N/A:H

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

2022-01-10 00:00Z4 YR AGO

Last updated

2024-08-04 00:54Z2 YR AGO

Reserved

2021-07-12

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-416Use After FreeVariant

Data version

5.1

Document digest

6894c6953eee49418e1b5ce90ae16a142116aa393385ec93a73f820425f4c9bc

• github.comhttps://github.com/strukturag/libde265/issues/299
• lists.debian.org[debian-lts-announce] 20221215 [SECURITY] [DLA 3240-1] libde265 security updatehttps://lists.debian.org/debian-lts-announce/2022/12/msg00027.htmlmailing-list
• www.debian.orgDSA-5346https://www.debian.org/security/2023/dsa-5346vendor-advisory