How severe is CVE-2026-42225?

CVE-2026-42225 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2026-42225 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-42225?

CVE-2026-42225 affects Teluu Pjsip. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-42225?

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

Does CVE-2026-42225 have an EU (EUVD) identifier?

Yes. CVE-2026-42225 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-28428.

When was CVE-2026-42225 published?

CVE-2026-42225 was published on 2026-05-07 and last updated on 2026-06-17.

CVE-2026-42225

CVE-2026-42225 is a medium-severity vulnerability in Teluu Pjsip with a CVSS 3.x base score of 5.9. 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-295.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v4: 8.2
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-28428
Weakness: CWE-295
Affected product: Teluu Pjsip
Published: 2026-05-07
Last modified: 2026-06-17

Description

PJSIP is a free and open source multimedia communication library written in C. Prior to version 2.17, on GnuTLS builds, the SIP TLS transport (sip_transport_tls) can accept connections with invalid or untrusted certificates even when the application explicitly enables certificate verification via verify_server = PJ_TRUE or verify_client = PJ_TRUE. This issue has been patched in version 2.17.

Frequently asked questions

What is CVE-2026-42225?: PJSIP is a free and open source multimedia communication library written in C. Prior to version 2.17, on GnuTLS builds, the SIP TLS transport (sip_transport_tls) can accept connections with invalid or untrusted certificates even when the application explicitly enables certificate verification via verify_server = PJ_TRUE or verify_client = PJ_TRUE. This issue has been patched in version 2.17.
How severe is CVE-2026-42225?: CVE-2026-42225 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2026-42225 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-42225?: CVE-2026-42225 affects Teluu Pjsip. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-42225?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-42225 have an EU (EUVD) identifier?: Yes. CVE-2026-42225 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-28428.
When was CVE-2026-42225 published?: CVE-2026-42225 was published on 2026-05-07 and last updated on 2026-06-17.

References

Affected products (1)

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

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