CVE-2015-3963

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.

Category

5.8
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 3.73% Top 15%
Third-Party Advisory schneider-electric.com Third-Party Advisory securityfocus.com Third-Party Advisory securitytracker.com Third-Party Advisory securitytracker.com Third-Party Advisory us-cert.gov Third-Party Advisory us-cert.gov Third-Party Advisory netapp.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/75302 vdb entry third party advisory
http://www.securitytracker.com/id/1032730 vdb entry third party advisory
http://www.schneider-electric.com/ww/en/download/document/SEVD-2015-162-01 third party advisory patch
https://ics-cert.us-cert.gov/advisories/ICSA-15-169-01A third party advisory us government resource
http://www.securitytracker.com/id/1033181 vdb entry third party advisory
https://security.netapp.com/advisory/ntap-20160324-0001/ third party advisory
https://ics-cert.us-cert.gov/advisories/ICSA-15-169-01 third party advisory us government resource

Frequently Asked Questions

What is the severity of CVE-2015-3963?
CVE-2015-3963 has been scored as a medium severity vulnerability.
How to fix CVE-2015-3963?
To fix CVE-2015-3963, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-3963 being actively exploited in the wild?
It is possible that CVE-2015-3963 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~4% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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