CVE-2021-43845

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

3.89% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 90.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2021-12-27 00:00Z4 YR AGO

Last updated

2025-11-04 16:09Z11 MO AGO

Reserved

2021-11-16

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 8.2)

CNA CVSS vector

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

Weaknesses

• CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

184943e77d368500d2c7db6e2a9e4ff413f8c257982e9c56a5f4938018a86f43

• github.comhttps://github.com/pjsip/pjproject/security/advisories/GHSA-r374-qrwv-86hh
• github.comhttps://github.com/pjsip/pjproject/pull/2924
• github.comhttps://github.com/pjsip/pjproject/commit/f74c1fc22b760d2a24369aa72c74c4a9ab985859
• lists.debian.org[debian-lts-announce] 20220328 [SECURITY] [DLA 2962-1] pjproject security updatehttps://lists.debian.org/debian-lts-announce/2022/03/msg00035.htmlmailing-list
• security.gentoo.orgGLSA-202210-37https://security.gentoo.org/glsa/202210-37vendor-advisory
• lists.debian.org[debian-lts-announce] 20221117 [SECURITY] [DLA 3194-1] asterisk security updatehttps://lists.debian.org/debian-lts-announce/2022/11/msg00021.htmlmailing-list
• www.debian.orgDSA-5285https://www.debian.org/security/2022/dsa-5285vendor-advisory
• lists.debian.org[debian-lts-announce] 20230829 [SECURITY] [DLA 3549-1] ring security updatehttps://lists.debian.org/debian-lts-announce/2023/08/msg00038.htmlmailing-list
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/09/msg00030.html