4.3

CVE-2016-7427: ntp Uncontrolled Resource Consumption

CVSS: 4.3v3.0MediumModified
AliasesUBUNTU-CVE-2016-7427DEBIAN-CVE-2016-7427
Published 13-01-2017Last modified 06-08-2024
Open JSON

Vulnerability summary

CVE-2016-7427 is a medium (CVSS 4.3) Uncontrolled Resource Consumption vulnerability in ntp. EPSS estimates a 3.91% chance of exploitation in the next 30 days, higher than 90.1% of scored vulnerabilities.

Overall risk
18/100
0100
Low · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v3.0 (NVD)
EPSS score
3.91%
0%100%
Low · -0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 6 · Related 6
OPENSUSE-SU-2024:10181-1SUSE-SU-2016:3193-1SUSE-SU-2016:3195-1SUSE-SU-2016:3196-1SUSE-SU-2017:0255-1USN-3349-1

Timeline

  1. 13-01-2017
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The broadcast mode replay prevention functionality in ntpd in NTP before 4.2.8p9 allows remote attackers to cause a denial of service (reject broadcast mode packets) via a crafted broadcast mode packet.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

3.91%

Chance of exploitation in the next 30 days

Percentile

90%

Versus all other CVEs

30-day change

-0.03 pp

From 3.94% on 18-09-2026

18-09-202618-10-2026
EPSS score
3.91%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • ntp< 1:4.2.8p9+dfsg-1
Ntp1 product
  • ntp4.2.8:p6 | 4.2.8:p7 | 4.2.8:p8
Ubuntu1 product
  • ntp< 1:4.2.6.p5+dfsg-3ubuntu2.14.04.11 | < 1:4.2.8p4+dfsg-3ubuntu5.5

3 vendors · 3 products

References

18 links
Show all 18 references