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Fencer Vulns
high 8.1

CVE-2019-12263 json

Wind River VxWorks 6.9.4 and vx7 has a Buffer Overflow in the TCP component (issue 4 of 4).

published 2019-08-09 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-3905

cvss
8.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.2%
EPSS 3.2% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

Wind River VxWorks 6.9.4 and vx7 has a Buffer Overflow in the TCP component (issue 4 of 4). There is an IPNET security vulnerability: TCP Urgent Pointer state confusion due to race condition.

Patch / fix

  • windriver vxworks 6.9.4.12
  • siemens siprotec_5_firmware 7.59, 7.91
  • siemens power_meter_9410_firmware 2.2.1
  • siemens ruggedcom_win7000_firmware bs5.2.461.17
  • siemens ruggedcom_win7018_firmware bs5.2.461.17
  • siemens ruggedcom_win7025_firmware bs5.2.461.17
  • siemens ruggedcom_win7200_firmware bs5.2.461.17

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-19-274-01 updated cvss 8.1

Interpeak IPnet TCP/IP Stack (Update E)

  • Wind River Advanced Networking Technology (ANT) Green Hills Software INTEGRITY RTOS >=2003, <=2006 ENEA OSE OSE4, OSE5 Wind River VxWorks >=6.5 Wind River VxWorks 653 MCE_3.x Wind River VxWorks bootrom network stack
    +1 more products
    Wind River VxWorks under CURRENT support (6.9.4.11, Vx7 SR540, Vx7 SR610)
    affected: mitigation “Enea has no IPNet customers on support contract in the United States.” cisa.gov
  • Wind River VxWorks 7_SR620, >=5.3, <=6.4 Wind River VxWorks 653 <=2.x, >=MCE_3.x_Cert_Edition Wind River VxWorks Cert
    not affected

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

cisa ICSMA-19-274-01 updated cvss 8.1

Interpeak IPnet TCP/IP Stack (Update D)

  • ENEA, Green Hills Software, ITRON, IP Infusion, and Wind River Advanced Networking Technology (ANT) ENEA, Green Hills Software, ITRON, IP Infusion, and Wind River INTEGRITY RTOS >= 2003, <= 2006 ENEA, Green Hills Software, ITRON, IP Infusion, and Wind River Ipnet TCP/IP Stack ENEA, Green Hills Software, ITRON, IP Infusion, and Wind River OSE 4, 5 ENEA, Green Hills Software, ITRON, IP Infusion, and Wind River VxWorks <= 6.5, 653 MCE 3.x ENEA, Green Hills Software, ITRON, IP Infusion, and Wind River VxWorks bootrom network stack
    +1 more products
    ENEA, Green Hills Software, ITRON, IP Infusion, and Wind River VxWorks under CURRENT support (6.9.4.11, Vx7 SR540, Vx7 SR610)
    affected: vendor fix spacelabshealthcare.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

cisa ICSA-19-211-01 updated cvss 8.1

Wind River VxWorks (Update A)

  • Wind River Advanced Networking Technology (ANT) Wind River VxWorks 6.9.4.11 Wind River VxWorks 653 MCE_3.x Wind River VxWorks End-of-Life >=6.5 Wind River VxWorks Vx7 SR540, SR610
    affected: vendor fix, mitigation “For more detailed information on the vulnerabilities and the mitigating controls, please see the Wind River advisory” windriver.com
  • Wind River VxWorks >=5.3, <=6.4 Wind River VxWorks 7 SR620 Wind River VxWorks 653 <=2.x, >=MCE_3.x_Cert_Edition Wind River VxWorks Cert
    not affected

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

3.16% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization
  • CWE-787 Out-of-bounds Write

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.