How severe is CVE-2026-33069?

CVE-2026-33069 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-33069 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33069?

CVE-2026-33069 affects Pjsip. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33069?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-33069 have an EU (EUVD) identifier?

Yes. CVE-2026-33069 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-13632.

When was CVE-2026-33069 published?

CVE-2026-33069 was published on 2026-03-20 and last updated on 2026-06-17.

CVE-2026-33069

CVE-2026-33069 is a high-severity vulnerability in Pjsip with a CVSS 3.x base score of 7.5. 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: High (CVSS 3.x base score 7.5)
CVSS v4: 6.9
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-13632
Weakness: CWE-125
Affected product: Pjsip
Published: 2026-03-20
Last modified: 2026-06-17

Description

PJSIP is a free and open source multimedia communication library written in C. Versions 2.16 and below have a cascading out-of-bounds heap read in pjsip_multipart_parse(). After boundary string matching, curptr is advanced past the delimiter without verifying it has not reached the buffer end. This allows 1-2 bytes of adjacent heap memory to be read. All applications that process incoming SIP messages with multipart bodies or SDP content are potentially affected. This issue is resolved in version 2.17.

Frequently asked questions

What is CVE-2026-33069?: PJSIP is a free and open source multimedia communication library written in C. Versions 2.16 and below have a cascading out-of-bounds heap read in pjsip_multipart_parse(). After boundary string matching, curptr is advanced past the delimiter without verifying it has not reached the buffer end. This allows 1-2 bytes of adjacent heap memory to be read. All applications that process incoming SIP messages with multipart bodies or SDP content are potentially affected. This issue is resolved in version 2.17.
How severe is CVE-2026-33069?: CVE-2026-33069 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-33069 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33069?: CVE-2026-33069 affects Pjsip. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33069?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-33069 have an EU (EUVD) identifier?: Yes. CVE-2026-33069 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-13632.
When was CVE-2026-33069 published?: CVE-2026-33069 was published on 2026-03-20 and last updated on 2026-06-17.

References

Affected products (1)

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

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