MEDIUM
CVE-2018-7287
CWE-754Published: February 22, 2018· Updated: Jun 17, 2026
5.9
CVSS v3.1
Official Description
An issue was discovered in res_http_websocket.c in Asterisk 15.x through 15.2.1. If the HTTP server is enabled (default is disabled), WebSocket payloads of size 0 are mishandled (with a busy loop).
Technical Analysis
CVE-2018-7287 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 5.9.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Vendors & Products
digium1 product(s)
asterisk
Source: NVD CPE · 9 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (8)
→
http://downloads.digium.com/pub/security/AST-2018-006.htmlVendor Advisory
→
http://www.securityfocus.com/bid/103120Third Party Advisory · VDB Entry
→
http://www.securitytracker.com/id/1040419Third Party Advisory · VDB Entry
→
https://issues.asterisk.org/jira/browse/ASTERISK-27658Vendor Advisory
→
http://downloads.digium.com/pub/security/AST-2018-006.htmlVendor Advisory
→
http://www.securityfocus.com/bid/103120Third Party Advisory · VDB Entry
→
http://www.securitytracker.com/id/1040419Third Party Advisory · VDB Entry
→
https://issues.asterisk.org/jira/browse/ASTERISK-27658Vendor Advisory
Quick Facts
CVE IDCVE-2018-7287
CVSS Score5.9 / 10
SeverityMEDIUM
WeaknessCWE-754
CISA KEVNo
Affected1 vendor(s)
PublishedFeb 22, 2018
Related CVEs (CWE-754)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2018-7287 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.