How severe is CVE-2019-15639?

CVE-2019-15639 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 none, integrity none, and availability high.

Is CVE-2019-15639 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 22% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-15639?

CVE-2019-15639 affects Digium Asterisk. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-15639?

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.

When was CVE-2019-15639 published?

CVE-2019-15639 was published on 2019-09-09 and last updated on 2026-06-17.

CVE-2019-15639

CVE-2019-15639 is a high-severity vulnerability in Digium Asterisk with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 22% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 22% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Digium Asterisk
Published: 2019-09-09
Last modified: 2026-06-17

Description

main/translate.c in Sangoma Asterisk 13.28.0 and 16.5.0 allows a remote attacker to send a specific RTP packet during a call and cause a crash in a specific scenario.

Frequently asked questions

What is CVE-2019-15639?: main/translate.c in Sangoma Asterisk 13.28.0 and 16.5.0 allows a remote attacker to send a specific RTP packet during a call and cause a crash in a specific scenario.
How severe is CVE-2019-15639?: CVE-2019-15639 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 none, integrity none, and availability high.
Is CVE-2019-15639 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 22% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-15639?: CVE-2019-15639 affects Digium Asterisk. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-15639?: 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.
When was CVE-2019-15639 published?: CVE-2019-15639 was published on 2019-09-09 and last updated on 2026-06-17.

References

Affected products (1)

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

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