SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2015-3963

Wind River VxWorks before 5.5.1, 6.5.x through 6.7.x before 6.7.1.1, 6.8.x before 6.8.3, 6.9.x before 6.9.4.4, and 7.x before 7 ipnet_coreip 1.2.2.0, as used on Schneider Electric SAGE RTU devices before J2 and other devices, does not properly generate…

MEDIUM 5.8EPSS 3.74%

Does this matter?

Lower severity and a low EPSS score (3.74%). Track it; it rarely justifies an emergency change on its own.

Description

Wind River VxWorks before 5.5.1, 6.5.x through 6.7.x before 6.7.1.1, 6.8.x before 6.8.3, 6.9.x before 6.9.4.4, and 7.x before 7 ipnet_coreip 1.2.2.0, as used on Schneider Electric SAGE RTU devices before J2 and other devices, does not properly generate TCP initial sequence number (ISN) values, which makes it easier for remote attackers to spoof TCP sessions by predicting an ISN value.

CVSS 2.0
5.8 MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:P
EPSS
3.74% probability · 89th percentile
CISA KEV
Not listed
Weakness
CWE-330
Affected
windriver/vxworks
Source
ics-cert@hq.dhs.gov

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.