CVE-2015-7855
6.5 · MEDIUMOverview
CVE-2015-7855 is a medium-severity vulnerability affecting ntp ntp. It was published on August 7, 2017 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
The decodenetnum function in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service (assertion failure) via a 6 or mode 7 packet containing a long data value.
Remediation
Check the references section for vendor advisories and patches from ntp. Update ntp to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| ntp | ntp | >= 4.2.0, < 4.2.8 | Affected |
References
Frequently Asked Questions
What is CVE-2015-7855?
CVE-2015-7855 is a medium-severity vulnerability affecting ntp ntp. It was published on August 7, 2017 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
How severe is CVE-2015-7855?
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2015-7855?
Check the references section for vendor advisories and patches from ntp. Update ntp to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2015-7855?
CyberStrike's AI-powered security agents can automatically detect CVE-2015-7855 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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