Vulnerability Monitor

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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 TCP initial sequence number (ISN) values, which makes it easier for remote attackers to spoof TCP sessions by predicting an ISN value.

Security Impact Summary

CVE-2015-3963 is a security vulnerability that . Impacting 14 products from windriver, from schneider-electric, from schneider-electric and 11 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2015, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2015-08-04T01:59:07.357

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.8 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:P/A:P

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

8.6

Impact Score

4.9

Weaknesses

Type: Primary
CWE-330

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	windriver	vxworks	≤ 6.6	Yes
Operating System	windriver	vxworks	< 6.7.1.1	Yes
Operating System	windriver	vxworks	< 6.8.3	Yes
Operating System	windriver	vxworks	< 6.9.4.4	Yes
Operating System	windriver	vxworks	6.6.3	Yes
Operating System	windriver	vxworks	6.6.4	Yes
Operating System	windriver	vxworks	6.6.4.1	Yes
Operating System	windriver	vxworks	7.0	Yes
Hardware	schneider-electric	sage_1210	-	No
Hardware	schneider-electric	sage_1230	-	No
Hardware	schneider-electric	sage_1250	-	No
Hardware	schneider-electric	sage_1310	-	No
Hardware	schneider-electric	sage_1330	-	No
Hardware	schneider-electric	sage_1350	-	No
Hardware	schneider-electric	sage_1410	-	No
Hardware	schneider-electric	sage_1430	-	No
Hardware	schneider-electric	sage_1450	-	No
Hardware	schneider-electric	sage_2200	-	No
Hardware	schneider-electric	sage_2400	-	No
Hardware	schneider-electric	sage_3030	-	No
Hardware	schneider-electric	sage_3030_magnum	-	No

References

http://www.schneider-electric.com/ww/en/download/document/SEVD-2015-162-01 Patch, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/75302 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id/1032730 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id/1033181 Third Party Advisory, VDB Entry ([email protected])
https://ics-cert.us-cert.gov/advisories/ICSA-15-169-01 Third Party Advisory, US Government Resource ([email protected])
https://ics-cert.us-cert.gov/advisories/ICSA-15-169-01A Third Party Advisory, US Government Resource ([email protected])
https://security.netapp.com/advisory/ntap-20160324-0001/ Third Party Advisory ([email protected])
http://www.schneider-electric.com/ww/en/download/document/SEVD-2015-162-01 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/75302 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1032730 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1033181 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://ics-cert.us-cert.gov/advisories/ICSA-15-169-01 Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
https://ics-cert.us-cert.gov/advisories/ICSA-15-169-01A Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20160324-0001/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For windriver's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.