Is CVE-2019-12261 being actively exploited?

CVE-2019-12261 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2019-12261?

CVE-2019-12261 has a CVSS 3.1 base score of 9.8 (CRITICAL).

CVE-2019-12261

CRITICAL · CVSS 9.8EPSS 9.0%EU EUVD

Wind River VxWorks 6.7 though 6.9 and vx7 has a Buffer Overflow in the TCP component (issue 3 of 4). This is an IPNET security vulnerability: TCP Urgent Pointer state confusion during connect() to a remote host.

Key facts

CVSS score: 9.8 (v3.1)
Severity: CRITICAL
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-120
EPSS score: 9.0% (95th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2019-3903)
Published: August 9, 2019
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2019-3903 in the EU Vulnerability Database. Last updated in EUVD on August 4, 2024.

View on the EU Vulnerability Database

Affected products

belden / garrettcom magnum dx940e
belden / garrettcom magnum dx940e firmware
belden / hirschmann dragon mach4000
belden / hirschmann dragon mach4500
belden / hirschmann eagle one
belden / hirschmann eagle20
belden / hirschmann eagle30
belden / hirschmann ees20
belden / hirschmann ees25
belden / hirschmann eesx20
belden / hirschmann eesx30
belden / hirschmann grs1020
belden / hirschmann grs1030
belden / hirschmann grs1042
belden / hirschmann grs1120
belden / hirschmann grs1130
belden / hirschmann grs1142
belden / hirschmann hios
belden / hirschmann msp30
belden / hirschmann msp32
belden / hirschmann msp40
belden / hirschmann octopus os3
belden / hirschmann rail switch power lite
belden / hirschmann rail switch power smart
belden / hirschmann red25
belden / hirschmann rsp20
belden / hirschmann rsp25
belden / hirschmann rsp30
belden / hirschmann rsp35
belden / hirschmann rspe30
belden / hirschmann rspe32
belden / hirschmann rspe35
belden / hirschmann rspe37
netapp / e-series santricity os controller
oracle / communications eagle
siemens / power meter 9410
siemens / power meter 9410 firmware
siemens / power meter 9810
siemens / power meter 9810 firmware
siemens / ruggedcom win7000
siemens / ruggedcom win7000 firmware
siemens / ruggedcom win7018
siemens / ruggedcom win7018 firmware
siemens / ruggedcom win7025
siemens / ruggedcom win7025 firmware
siemens / ruggedcom win7200
siemens / ruggedcom win7200 firmware
siemens / siprotec 5
siemens / siprotec 5 firmware
siemens / siprotec 5 firmware

and 6 more…

Certified products that may be affected

7 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

SonicWall SonicOS Enhanced V6.5.4 with VPN and IPS on TZ and SOHO Appliances - SonicWALL, Inc - Common Criteria CCEVS-VR-11028-2020 - archived
SonicWall SonicOS Enhanced V6.5.2 - SonicWALL, Inc - Common Criteria CCEVS-VR-10914-2019 - archived
SonicWall SonicOS Enhanced V6.2.5 VPN Gateway on NSA, SM, and TZ Appliances - SonicWALL, Inc - Common Criteria 383-4-438 - archived
SonicWall SonicOS Enhanced V6.2.5 with IPS on NSA, SM, and TZ Appliances - SonicWALL, Inc - Common Criteria 383-4-422 - archived
SonicWall SonicOS Enhanced V6.2.5 on NSA, SM, and TZ Appliances - SonicWALL, Inc - Common Criteria 383-4-393 - archived

See all 7 in the Security Certifications Explorer.

References

https://cert-portal.siemens.com/productcert/pdf/ssa-189842.pdf(Third Party Advisory)
https://cert-portal.siemens.com/productcert/pdf/ssa-352504.pdf(Third Party Advisory)
https://cert-portal.siemens.com/productcert/pdf/ssa-632562.pdf(Third Party Advisory)
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0009(Third Party Advisory)
https://security.netapp.com/advisory/ntap-20190802-0001/(Third Party Advisory)
https://support.f5.com/csp/article/K41190253(Third Party Advisory)
https://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2019-12261(Vendor Advisory)
https://support2.windriver.com/index.php?page=security-notices(Issue Tracking, Vendor Advisory)
https://www.oracle.com/security-alerts/cpuoct2020.html(Third Party Advisory)
https://www.windriver.com/security/announcements/tcp-ip-network-stack-ipnet-urgent11/(Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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