CVE-2018-12228
An issue was discovered in Asterisk Open Source 15.x before 15.4.1.
Does this matter?
Lower severity and a low EPSS score (6.46%). Track it; it rarely justifies an emergency change on its own.
Description
An issue was discovered in Asterisk Open Source 15.x before 15.4.1. When connected to Asterisk via TCP/TLS, if the client abruptly disconnects, or sends a specially crafted message, then Asterisk gets caught in an infinite loop while trying to read the data stream. This renders the system unusable.
- CVSS 3.0
- 6.5 MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 6.46% probability · 94th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-835
- Affected
- sangoma/asterisk
- Source
- cve@mitre.org
EPSS moved from 5.6% on 21 September 2026 to 6.5% on 27 October 2026, peaking at 6.7% on 22 September 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://downloads.asterisk.org/pub/security/AST-2018-007.htmlVendor Advisory
- http://www.securityfocus.com/bid/104457Third Party Advisory, VDB Entry
- https://issues.asterisk.org/jira/browse/ASTERISK-27807Exploit, Vendor Advisory
- http://downloads.asterisk.org/pub/security/AST-2018-007.htmlVendor Advisory
- http://www.securityfocus.com/bid/104457Third Party Advisory, VDB Entry
- https://issues.asterisk.org/jira/browse/ASTERISK-27807Exploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.