An issue was discovered in res_http_websocket.c in Asterisk 15.x through 15.2.1.
Priority MEDIUM 40CWE-754Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
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).
Why it matters now
EPSS 0.11452 96th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 14
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:digium:asterisk:15.0.0:beta1:*:*:*:*:*:* | 15.0.0 beta1 | Vulnerable | Digium |
| cpe:2.3:a:digium:asterisk:15.0.0:rc1:*:*:*:*:*:* | 15.0.0 rc1 | Vulnerable | Digium |
| cpe:2.3:a:digium:asterisk:15.1.0:*:*:*:*:*:*:* | 15.1.0 | Vulnerable | Digium |
| cpe:2.3:a:digium:asterisk:15.1.0:rc1:*:*:*:*:*:* | 15.1.0 rc1 | Vulnerable | Digium |
| cpe:2.3:a:digium:asterisk:15.1.0:rc2:*:*:*:*:*:* | 15.1.0 rc2 | Vulnerable | Digium |
| cpe:2.3:a:digium:asterisk:15.1.1:*:*:*:*:*:*:* | 15.1.1 | Vulnerable | Digium |
| cpe:2.3:a:digium:asterisk:15.1.2:*:*:*:*:*:*:* | 15.1.2 | Vulnerable | Digium |
| cpe:2.3:a:digium:asterisk:15.1.3:*:*:*:*:*:*:* | 15.1.3 | Vulnerable | Digium |
| cpe:2.3:a:digium:asterisk:15.1.4:*:*:*:*:*:*:* | 15.1.4 | Vulnerable | Digium |
| cpe:2.3:a:digium:asterisk:15.1.5:*:*:*:*:*:*:* | 15.1.5 | Vulnerable | Digium |
- cpe:2.3:a:digium:asterisk:15.0.0:beta1:*:*:*:*:*:* Versions 15.0.0 beta1 Vulnerable ·Digium
- cpe:2.3:a:digium:asterisk:15.0.0:rc1:*:*:*:*:*:* Versions 15.0.0 rc1 Vulnerable ·Digium
- cpe:2.3:a:digium:asterisk:15.1.0:*:*:*:*:*:*:* Versions 15.1.0 Vulnerable ·Digium
- cpe:2.3:a:digium:asterisk:15.1.0:rc1:*:*:*:*:*:* Versions 15.1.0 rc1 Vulnerable ·Digium
- cpe:2.3:a:digium:asterisk:15.1.0:rc2:*:*:*:*:*:* Versions 15.1.0 rc2 Vulnerable ·Digium
- cpe:2.3:a:digium:asterisk:15.1.1:*:*:*:*:*:*:* Versions 15.1.1 Vulnerable ·Digium
- cpe:2.3:a:digium:asterisk:15.1.2:*:*:*:*:*:*:* Versions 15.1.2 Vulnerable ·Digium
- cpe:2.3:a:digium:asterisk:15.1.3:*:*:*:*:*:*:* Versions 15.1.3 Vulnerable ·Digium
- cpe:2.3:a:digium:asterisk:15.1.4:*:*:*:*:*:*:* Versions 15.1.4 Vulnerable ·Digium
- cpe:2.3:a:digium:asterisk:15.1.5:*:*:*:*:*:*:* Versions 15.1.5 Vulnerable ·Digium
Show 4 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:digium:asterisk:15.2.0:*:*:*:*:*:*:* | 15.2.0 | Vulnerable | Digium |
| cpe:2.3:a:digium:asterisk:15.2.0:rc1:*:*:*:*:*:* | 15.2.0 rc1 | Vulnerable | Digium |
| cpe:2.3:a:digium:asterisk:15.2.0:rc2:*:*:*:*:*:* | 15.2.0 rc2 | Vulnerable | Digium |
| cpe:2.3:a:digium:asterisk:15.2.1:*:*:*:*:*:*:* | 15.2.1 | Vulnerable | Digium |
- cpe:2.3:a:digium:asterisk:15.2.0:*:*:*:*:*:*:* Versions 15.2.0 Vulnerable ·Digium
- cpe:2.3:a:digium:asterisk:15.2.0:rc1:*:*:*:*:*:* Versions 15.2.0 rc1 Vulnerable ·Digium
- cpe:2.3:a:digium:asterisk:15.2.0:rc2:*:*:*:*:*:* Versions 15.2.0 rc2 Vulnerable ·Digium
- cpe:2.3:a:digium:asterisk:15.2.1:*:*:*:*:*:*:* Versions 15.2.1 Vulnerable ·Digium
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2018-7287
- 2026-10-03 Alias added: GHSA-38rg-6v6g-2qmq
References
More Digium Asterisk vulnerabilities
- TI-2006-05256 Integer overflow in the get_input function in the Skinny channel driver (chan_skinny.c)… CVSS 2.0HIGH 7.5
- TI-2017-12542 An issue was discovered in chan_skinny.c in Asterisk Open Source 13.18.2 and older… CVSS 3.0HIGH 7.5
- TI-2023-27195 Asterisk susceptible to Denial of Service via DTLS Hello packets during call initiation CVSS 3.1HIGH 7.5
- TI-2017-13083 An issue was discovered in Asterisk 13.18.4 and older, 14.7.4 and older, 15.1.4 and… CVSS 3.0HIGH 7.5
- TI-2019-13459 An issue was discovered in manager.c in Sangoma Asterisk through 13.x, 16.x, 17.x and… CVSS 3.1HIGH 8.8
- TI-2018-05283 A Buffer Overflow issue was discovered in Asterisk through 13.19.1, 14.x through 14.7.5… CVSS 3.0HIGH 7.5
Sources
- CVE-2018-7287 · CVE Program
- CVE-2018-7287 · NVD
- FIRST EPSS
- GHSA-38rg-6v6g-2qmq · GitHub Advisory Database · CC BY 4.0
- CVE-2018-7287 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences