CVE-2019-12258

HIGHNVD 7.57.5—Weaponized

7.5

Wind River VxWorks 6.6 through vx7 has Session Fixation in the TCP component. This is a IPNET security vulnerability: DoS of TCP connection via malformed TCP options.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 90.8%
KEV: Not listed

Published

August 9, 2019

Last Modified

November 21, 2024

References (18)

cve@mitrehttps://cert-portal.siemens.com/productcert/pdf/ssa-189842.pdf
cve@mitrehttps://cert-portal.siemens.com/productcert/pdf/ssa-352504.pdf
cve@mitrehttps://cert-portal.siemens.com/productcert/pdf/ssa-632562.pdf
cve@mitrehttps://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0009
cve@mitrehttps://security.netapp.com/advisory/ntap-20190802-0001/
cve@mitrehttps://support.f5.com/csp/article/K41190253
cve@mitrehttps://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2019-12258
cve@mitrehttps://support2.windriver.com/index.php?page=security-notices
cve@mitrehttps://www.windriver.com/security/announcements/tcp-ip-network-stack-ipnet-urgent11/
af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/pdf/ssa-189842.pdf
af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/pdf/ssa-352504.pdf
af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/pdf/ssa-632562.pdf
af854a3a-2127-422b-91ae-364da2661108https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0009
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20190802-0001/
af854a3a-2127-422b-91ae-364da2661108https://support.f5.com/csp/article/K41190253

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-384Session Fixation

Data Freshness Timeline

(refreshed 10× in last 7d / 18× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-04 13:10 UTCepss_batch
2026-06-04 13:10 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 16:07 UTCEG score recompute
2026-05-27 16:07 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Metasploit module). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Metasploitauxiliary/scanner/vxworks/urgent11_check✓ verified
First seen Aug 9, 2019
URGENT/11 Scanner, Based on Detection Tool by Armis
Open source ↗

Frequently asked(5)

What is CVE-2019-12258?

CVE-2019-12258 is a high vulnerability published on August 9, 2019. Wind River VxWorks 6.6 through vx7 has Session Fixation in the TCP component. This is a IPNET security vulnerability: DoS of TCP connection via malformed TCP options.

When was CVE-2019-12258 disclosed?

CVE-2019-12258 was first published in the National Vulnerability Database on August 9, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2019-12258 actively exploited?

CVE-2019-12258 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 90.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2019-12258?

CVE-2019-12258 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2019-12258?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-12258, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2019-12258

📅 Published

🔄 Last Modified

🔗 References (18)

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2019-12258?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (18)

Frequently asked(5)

Related CVEs(same CWE)