CVE-2022-21723

mediumpriority · track · 38EPSS 0.044 · 91 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

4.36% (91st) EPSS

CVSS 6.4 · medium

Is it mine?

20 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In versions 2.11.1 and prior, parsing an incoming SIP message that contains a malformed multipart can potentially cause out-of-bound read access. This issue affects all PJSIP users that accept SIP multipart. The patch is available as commit in the `master` branch. There are no known workarounds.

cvss

Technical severity, 0–10. One row per scoring source.

9.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.4–9.1

v2.06.4mediumAV:N/AC:L/Au:N/C:P/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 4.9

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.2

v3.19.1criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Hsecondary · ENISA EU

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Hsecondary · security-advisories@github.comexploitability 3.9 · impact 5.2

v3.18.3highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-125USprimaryCWE-125US

affected products (20)

Products and version ranges known to be affected.

Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Digium Certified Asterisk <16.8-cert13all versionscert_bundDE
Open Source Asterisk <16.24.1all versionscert_bundDE
Open Source Asterisk <18.10.1all versionscert_bundDE
Open Source Asterisk <19.2.1all versionscert_bundDE
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Digium Certified Asterisk< 16.8-cert13cert_bundDE
Open Source Asterisk< 16.24.1cert_bundDE
Open Source Asterisk< 18.10.1cert_bundDE
Open Source Asterisk< 19.2.1cert_bundDE
pjsip pjproject≤ ≤ 2.11.1enisa_euvdEU
АО «НППКТ» ОСОН ОСнова Оnyx≤ 2.10fstec_bduRU
Сообщество свободного программного обеспечения PJSIP≤ 2.11.1fstec_bduRU
asterisk certified asterisk= 16.8.0nvdUScpe:2.3:a:asterisk:certified_asterisk:*:*:*:*:*:*:*:*
debian debian linux= 10.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
debian debian linux= 9.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
sangoma asterisk16.0.0 → 16.24.1nvdUScpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*
sangoma asterisk18.0.0 → 18.10.1nvdUScpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*
sangoma asterisk19.0.0 → 19.2.1nvdUScpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*
teluu pjsip≤ 2.11.1nvdUScpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2022-2108Asterisk: Mehrere SchwachstellenDeutsch2022-03-06csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Asterisk und Digium Certified Asterisk ausnutzen, um beliebigen Programmcode auszuführen, einen Denial of Service Zustand herbeizuführen oder Informationen offenzulegen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd NVD CVE.org MITRE

published 2022-01-27modified 2026-06-17

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+11867 more

references (38)

External citations — patches, advisories, analysis.

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