SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2015-7973

NTP before 4.2.8p6 and 4.3.x before 4.3.90, when configured in broadcast mode, allows man-in-the-middle attackers to conduct replay attacks by sniffing the network.

MEDIUM 6.5EPSS 3.35%

Does this matter?

Lower severity and a low EPSS score (3.35%). Track it; it rarely justifies an emergency change on its own.

Description

NTP before 4.2.8p6 and 4.3.x before 4.3.90, when configured in broadcast mode, allows man-in-the-middle attackers to conduct replay attacks by sniffing the network.

CVSS 3.1
6.5 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
EPSS
3.35% probability · 89th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-254
Affected
ntp/ntp · siemens/tim 4r-ie firmware · siemens/tim 4r-ie dnp3 firmware · freebsd/freebsd · netapp/clustered data ontap · netapp/oncommand balance · canonical/ubuntu linux
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 3.35%26 October 202626 October 2026

EPSS 3.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.