CVE-2018-7286
CVE-2018-7286 is a medium-severity vulnerability in Digium Asterisk with a CVSS 3.x base score of 6.5. Its EPSS exploit-prediction score of 39% places it in the 98th percentile, indicating an elevated likelihood of exploitation.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v2: 4.0
- EPSS exploit prediction: 39% (98th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Digium Asterisk
- Published:
- Last modified:
Description
An issue was discovered in Asterisk through 13.19.1, 14.x through 14.7.5, and 15.x through 15.2.1, and Certified Asterisk through 13.18-cert2. res_pjsip allows remote authenticated users to crash Asterisk (segmentation fault) by sending a number of SIP INVITE messages on a TCP or TLS connection and then suddenly closing the connection.
Frequently asked questions
- What is CVE-2018-7286?
- An issue was discovered in Asterisk through 13.19.1, 14.x through 14.7.5, and 15.x through 15.2.1, and Certified Asterisk through 13.18-cert2. res_pjsip allows remote authenticated users to crash Asterisk (segmentation fault) by sending a number of SIP INVITE messages on a TCP or TLS connection and then suddenly closing the connection.
- How severe is CVE-2018-7286?
- CVE-2018-7286 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2018-7286 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 39% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-7286?
- CVE-2018-7286 primarily affects Digium Asterisk. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2018-7286?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2018-7286 published?
- CVE-2018-7286 was published on 2018-02-22 and last updated on 2026-06-17.
References
- http://downloads.asterisk.org/pub/security/AST-2018-005.html
- http://www.securityfocus.com/bid/103129
- http://www.securitytracker.com/id/1040417
- https://issues.asterisk.org/jira/browse/ASTERISK-27618
- https://www.debian.org/security/2018/dsa-4320
- https://www.exploit-db.com/exploits/44181/
Affected products (4)
- cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:13.19.1:*:*:*:*:*:*:*
- cpe:2.3:a:digium:certified_asterisk:*:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
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