How severe is CVE-2018-7287?

CVE-2018-7287 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-2018-7287 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-7287?

CVE-2018-7287 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-2018-7287?

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

When was CVE-2018-7287 published?

CVE-2018-7287 was published on 2018-02-22 and last updated on 2026-06-17.

CVE-2018-7287

CVE-2018-7287 is a medium-severity vulnerability in Digium Asterisk with a CVSS 3.x base score of 5.9. Its EPSS exploit-prediction score of 12% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-754.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 4.3
EPSS exploit prediction: 12% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-754
Affected product: Digium Asterisk
Published: 2018-02-22
Last modified: 2026-06-17

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).

Frequently asked questions

What is CVE-2018-7287?: 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).
How severe is CVE-2018-7287?: CVE-2018-7287 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-2018-7287 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-7287?: CVE-2018-7287 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-2018-7287?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-7287 published?: CVE-2018-7287 was published on 2018-02-22 and last updated on 2026-06-17.

References

Affected products (14)

cpe:2.3:a:digium:asterisk:15.0.0:beta1:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:15.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:15.1.0:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:15.1.0:rc1:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:15.1.0:rc2:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:15.1.1:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:15.1.2:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:15.1.3:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:15.1.4:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:15.1.5:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:15.2.0:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:15.2.0:rc1:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:15.2.0:rc2:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:15.2.1:*:*:*:*:*:*:*

More vulnerabilities in Digium Asterisk

CVE-2022-26651 — Critical (CVSS 9.8): An issue was discovered in Asterisk through 19.x and Certified Asterisk through 16.8-cert13. The func_odbc module…
CVE-2017-14100 — Critical (CVSS 9.8): In Asterisk 11.x before 11.25.2, 13.x before 13.17.1, and 14.x before 14.6.1 and Certified Asterisk 11.x before…
CVE-2022-26499 — Critical (CVSS 9.1): An SSRF issue was discovered in Asterisk through 19.x. When using STIR/SHAKEN, it's possible to send arbitrary requests…
CVE-2014-8418 — Critical (CVSS 9.0): The DB dialplan function in Asterisk Open Source 1.8.x before 1.8.32, 11.x before 11.1.4.1, 12.x before 12.7.1, and…
CVE-2011-1599 — Critical (CVSS 9.0): manager.c in the Manager Interface in Asterisk Open Source 1.4.x before 1.4.40.1, 1.6.1.x before 1.6.1.25, 1.6.2.x…
CVE-2019-18610 — High (CVSS 8.8): An issue was discovered in manager.c in Sangoma Asterisk through 13.x, 16.x, 17.x and Certified Asterisk 13.21 through…

All CVEs affecting Digium Asterisk →

Other CWE-754 (Improper Check for Unusual or Exceptional Conditions) vulnerabilities

CVE-2026-24054 — Critical (CVSS 10.0): Kata Containers is an open source project focusing on a standard implementation of lightweight Virtual Machines (VMs)…
CVE-2021-0211 — Critical (CVSS 10.0): An improper check for unusual or exceptional conditions in Juniper Networks Junos OS and Junos OS Evolved Routing…
CVE-2026-8091 — Critical (CVSS 9.8): Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150,…
CVE-2024-52316 — Critical (CVSS 9.8): Unchecked Error Condition vulnerability in Apache Tomcat. If Tomcat is configured to use a custom Jakarta…
CVE-2024-7826 — Critical (CVSS 9.8): Improper Check for Unusual or Exceptional Conditions vulnerability in Webroot SecureAnywhere - Web Shield on Windows,…
CVE-2023-37303 — Critical (CVSS 9.8): An issue was discovered in the CheckUser extension for MediaWiki through 1.39.3. In certain situations, an attempt to…

Browse all CWE-754 (Improper Check for Unusual or Exceptional Conditions) vulnerabilities →