How severe is CVE-2017-17664?

CVE-2017-17664 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 none, and availability high.

Is CVE-2017-17664 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 32% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-17664?

CVE-2017-17664 primarily affects Digium Asterisk. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-17664?

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

When was CVE-2017-17664 published?

CVE-2017-17664 was published on 2017-12-13 and last updated on 2026-06-17.

CVE-2017-17664

CVE-2017-17664 is a medium-severity vulnerability in Digium Asterisk with a CVSS 3.x base score of 5.9. Its EPSS exploit-prediction score of 32% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 4.3
EPSS exploit prediction: 32% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Digium Asterisk
Published: 2017-12-13
Last modified: 2026-06-17

Description

A Remote Crash issue was discovered in Asterisk Open Source 13.x before 13.18.4, 14.x before 14.7.4, and 15.x before 15.1.4 and Certified Asterisk before 13.13-cert9. Certain compound RTCP packets cause a crash in the RTCP Stack.

Frequently asked questions

What is CVE-2017-17664?: A Remote Crash issue was discovered in Asterisk Open Source 13.x before 13.18.4, 14.x before 14.7.4, and 15.x before 15.1.4 and Certified Asterisk before 13.13-cert9. Certain compound RTCP packets cause a crash in the RTCP Stack.
How severe is CVE-2017-17664?: CVE-2017-17664 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 none, and availability high.
Is CVE-2017-17664 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 32% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-17664?: CVE-2017-17664 primarily affects Digium Asterisk. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-17664?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-17664 published?: CVE-2017-17664 was published on 2017-12-13 and last updated on 2026-06-17.

References

Affected products (14)

cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:*:*:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:13.13:cert1:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:13.13:cert1_rc1:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:13.13:cert1_rc2:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:13.13:cert1_rc3:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:13.13:cert1_rc4:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:13.13:cert2:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:13.13:cert3:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:13.13:cert4:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:13.13:cert5:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:13.13:cert6:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:13.13:cert7:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:13.13:cert8:*:*:*:*:*:*

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