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.

Published: 2017-12-13 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-17664 is rated Moderate Risk (62.9/100): CVSS Medium severity, with high exploitation likelihood (EPSS 30.29%, 98th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +29.01% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-17664

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 1.28% 30.29% +29.01%
2 2026-01-16 3.14% 1.28% -1.86%
3 2025-05-13 — 3.14% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-17664

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.9 3.0 MEDIUM
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2017-17664

OS Trackers for CVE-2017-17664

vendor priority summary link
debian not yet assigned CVE-2017-17664 not yet assigned priority: Debian including 1 source packages (asterisk), 2 status rows across 2 suites (bullseye, sid): resolved 2. https://security-tracker.debian.org/tracker/CVE-2017-17664
ubuntu medium CVE-2017-17664 medium priority: Ubuntu including 1 source packages (asterisk), 21 status rows across 21 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial, zesty): not-affected 15, ignored 2, needed 2, DNE 1, released 1. https://ubuntu.com/security/CVE-2017-17664

Affected software / configurations for CVE-2017-17664

Vendor Product Version Raw CPE
digium asterisk >= 13.0.0, < 13.18.4 cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
digium asterisk >= 14.0.0, < 14.7.4 cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
digium asterisk >= 15.0.0, < 15.1.4 cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
digium certified_asterisk <= 13.13 cpe:2.3:a:digium:certified_asterisk:*:*:*:*:*:*:*:*
digium certified_asterisk 13.13 cpe:2.3:a:digium:certified_asterisk:13.13:cert1:*:*:*:*:*:*
digium certified_asterisk 13.13 cpe:2.3:a:digium:certified_asterisk:13.13:cert1_rc1:*:*:*:*:*:*
digium certified_asterisk 13.13 cpe:2.3:a:digium:certified_asterisk:13.13:cert1_rc2:*:*:*:*:*:*
digium certified_asterisk 13.13 cpe:2.3:a:digium:certified_asterisk:13.13:cert1_rc3:*:*:*:*:*:*
digium certified_asterisk 13.13 cpe:2.3:a:digium:certified_asterisk:13.13:cert1_rc4:*:*:*:*:*:*
digium certified_asterisk 13.13 cpe:2.3:a:digium:certified_asterisk:13.13:cert2:*:*:*:*:*:*
digium certified_asterisk 13.13 cpe:2.3:a:digium:certified_asterisk:13.13:cert3:*:*:*:*:*:*
digium certified_asterisk 13.13 cpe:2.3:a:digium:certified_asterisk:13.13:cert4:*:*:*:*:*:*
digium certified_asterisk 13.13 cpe:2.3:a:digium:certified_asterisk:13.13:cert5:*:*:*:*:*:*
digium certified_asterisk 13.13 cpe:2.3:a:digium:certified_asterisk:13.13:cert6:*:*:*:*:*:*
digium certified_asterisk 13.13 cpe:2.3:a:digium:certified_asterisk:13.13:cert7:*:*:*:*:*:*
digium certified_asterisk 13.13 cpe:2.3:a:digium:certified_asterisk:13.13:cert8:*:*:*:*:*:*

References for CVE-2017-17664

cvelogic Threat Intelligence