CVE-2022-21722

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.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• 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

2.33% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 83.4% 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

2022-01-27 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

Critical (CVSS 9.1)

CNA CVSS vector

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

Weaknesses

• CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

f3518237cf6faabb2eb44b66c2a9f3131974b52266dd924384b6f0b9c28fd846

• github.comhttps://github.com/pjsip/pjproject/security/advisories/GHSA-m66q-q64c-hv36
• github.comhttps://github.com/pjsip/pjproject/commit/22af44e68a0c7d190ac1e25075e1382f77e9397a
• 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