How severe is CVE-2022-23547?

CVE-2022-23547 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability high.

Is CVE-2022-23547 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-23547?

CVE-2022-23547 affects Pjsip. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-23547?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-23547 published?

CVE-2022-23547 was published on 2022-12-23 and last updated on 2026-06-17.

CVE-2022-23547

CVE-2022-23547 is a medium-severity vulnerability in Pjsip with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Pjsip
Published: 2022-12-23
Last modified: 2026-06-17

Description

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. This issue is similar to GHSA-9pfh-r8x4-w26w. Possible buffer overread when parsing a certain STUN message. The vulnerability affects applications that uses STUN including PJNATH and PJSUA-LIB. The patch is available as commit in the master branch.

Frequently asked questions

What is CVE-2022-23547?: 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. This issue is similar to GHSA-9pfh-r8x4-w26w. Possible buffer overread when parsing a certain STUN message. The vulnerability affects applications that uses STUN including PJNATH and PJSUA-LIB. The patch is available as commit in the master branch.
How severe is CVE-2022-23547?: CVE-2022-23547 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability high.
Is CVE-2022-23547 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-23547?: CVE-2022-23547 affects Pjsip. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-23547?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-23547 published?: CVE-2022-23547 was published on 2022-12-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:pjsip:pjsip:*:*:*:*:*:*:*:*

More vulnerabilities in Pjsip

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Other CWE-125 (Out-of-bounds Read) vulnerabilities

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CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
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