CVE-2015-7849

high
Published 2017-08-07 · Modified 2026-05-13
CVSS v3
8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v2
6.5
VIR risk
8.8

Description

Use-after-free vulnerability in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote authenticated users to possibly execute arbitrary code or cause a denial of service (crash) via crafted packets.

Predictions

Exploit likelihood
92%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2015-7849

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — http://support.ntp.org/bin/view/Main/NtpBug2916

OS impact

OSVersionStatusFixed in
debian debianbullseyefixed1:4.2.8p4+dfsg-1

Application impact

VendorProductVersionsFixed
ntpntp{"startIncluding":"4.2.0","endExcluding":"4.2.8"}4.2.8
ntpntp4.2.8
netapponcommand_balance-
netapponcommand_performance_manager-
netapponcommand_unified_manager-

References

CWEs

CWE-416

Verify integrity in audit chain (admin only). AS-IS.