How severe is CVE-2019-15297?

CVE-2019-15297 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-2019-15297 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-15297?

CVE-2019-15297 affects Digium Asterisk. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-15297?

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

When was CVE-2019-15297 published?

CVE-2019-15297 was published on 2019-09-09 and last updated on 2026-06-17.

CVE-2019-15297

CVE-2019-15297 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-476.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 3% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Digium Asterisk
Published: 2019-09-09
Last modified: 2026-06-17

Description

res_pjsip_t38 in Sangoma Asterisk 15.x before 15.7.4 and 16.x before 16.5.1 allows an attacker to trigger a crash by sending a declined stream in a response to a T.38 re-invite initiated by Asterisk. The crash occurs because of a NULL session media object dereference.

Frequently asked questions

What is CVE-2019-15297?: res_pjsip_t38 in Sangoma Asterisk 15.x before 15.7.4 and 16.x before 16.5.1 allows an attacker to trigger a crash by sending a declined stream in a response to a T.38 re-invite initiated by Asterisk. The crash occurs because of a NULL session media object dereference.
How severe is CVE-2019-15297?: CVE-2019-15297 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-2019-15297 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-15297?: CVE-2019-15297 affects Digium Asterisk. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-15297?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-15297 published?: CVE-2019-15297 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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