How severe is CVE-2019-7251?

CVE-2019-7251 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-7251 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-7251?

CVE-2019-7251 affects Digium Asterisk. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-7251?

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

When was CVE-2019-7251 published?

CVE-2019-7251 was published on 2019-03-28 and last updated on 2026-06-17.

CVE-2019-7251

CVE-2019-7251 is a medium-severity vulnerability in Digium Asterisk 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-190.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-190
Affected product: Digium Asterisk
Published: 2019-03-28
Last modified: 2026-06-17

Description

An Integer Signedness issue (for a return code) in the res_pjsip_sdp_rtp module in Digium Asterisk versions 15.7.1 and earlier and 16.1.1 and earlier allows remote authenticated users to crash Asterisk via a specially crafted SDP protocol violation.

Frequently asked questions

What is CVE-2019-7251?: An Integer Signedness issue (for a return code) in the res_pjsip_sdp_rtp module in Digium Asterisk versions 15.7.1 and earlier and 16.1.1 and earlier allows remote authenticated users to crash Asterisk via a specially crafted SDP protocol violation.
How severe is CVE-2019-7251?: CVE-2019-7251 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-7251 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-7251?: CVE-2019-7251 affects Digium Asterisk. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-7251?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-7251 published?: CVE-2019-7251 was published on 2019-03-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*

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