CVE-2021-40985

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

0.94% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 58.4% 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

2021-11-03 16:08Z4 YR AGO

Last updated

2024-08-04 02:59Z2 YR AGO

Reserved

2021-09-13

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-125Out-of-bounds ReadBase

Data version

5.1

Document digest

c07d9ed6cf8db67baa72486a71e0ac3867cc3732f6265c7a2909da9ed7509531

• github.comhttps://github.com/michaelrsweet/htmldoc/commit/f12b9666e582a8e7b70f11b28e5ffc49ad625d43x_refsource_MISC
• github.comhttps://github.com/michaelrsweet/htmldoc/issues/444x_refsource_MISC
• lists.debian.org[debian-lts-announce] 20220226 [SECURITY] [DLA 2928-1] htmldoc security updatehttps://lists.debian.org/debian-lts-announce/2022/02/msg00022.htmlmailing-listx_refsource_MLIST