CVE-2015-7855
6.5
MEDIUM
CVSS 3.1
EPSS 50.1%
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.
How to fix CVE-2015-7855
To remediate CVE-2015-7855, upgrade the affected package to a fixed version below.
- Debian/ntp—upgrade to 1:4.2.8p4+dfsg-1 or later
Is CVE-2015-7855 being exploited?
Likely — EPSS is 50.1%, placing CVE-2015-7855 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.
Affected packages (1)
- from 0, < 1:4.2.8p4+dfsg-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |