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CVE-2019-12258

48
FAUCET Score

CVE-2019-12258 is a session fixation vulnerability in the TCP component of Wind River VxWorks versions 6.6 through vx7, affecting products from vendors like Belden, NetApp, Siemens, and SonicWall. Rated 7.5 HIGH, this vulnerability allows an unauthenticated attacker to cause a Denial of Service (DoS) by sending malformed TCP options. While not in the KEV catalog, it has a high FAUCET Risk Score of 94/100 and has garnered significant community attention and media coverage, with a Metasploit scanner module available, indicating potential for exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.5, < 6.9.4.12CPE matchmatch criteria
cpe:2.3:o:windriver:vxworks:*:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:windriver:vxworks:7.0:-:*:*:*:*:*:*
>= 5.9.0.0, <= 5.9.0.7CPE matchmatch criteria
cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:*
>= 5.9.1.0., <= 5.9.1.12CPE matchmatch criteria
cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:*
>= 6.2.0.0, <= 6.2.3.1CPE matchmatch criteria
cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
23.35%
Probability of exploitation in next 30 days
EPSS Percentile
97.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Metasploit: URGENT/11 Scanner, Based on Detection Tool by Armis · Aug 9, 2019
This CVE's current EPSS score of 0.2335 is in the 96th percentile among its peer group of 51,466 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (5)

amazonvendor investigatingvia llm_extracted
apollographqlvendor investigatingvia llm_extracted
dfinityvendor investigatingvia llm_extracted
fleetdmvendor investigatingvia llm_extracted
mathworksvendor investigatingvia llm_extracted

Vendor Advisories (5)

fleetdmllm-fleetdm-0f75584f7881cc68CRITICAL

VxWorks security updates in Bosch Rexroth controllers

Aug 8, 2019
amazonllm-amazon-01c9c557159e0eaaCRITICAL

VxWorks security updates in Bosch Rexroth controllers

Aug 8, 2019
apollographqlllm-apollographql-006354509ddb08deCRITICAL

VxWorks security updates in Bosch Rexroth controllers

Aug 8, 2019
dfinityllm-dfinity-d304421499ee3499CRITICAL

VxWorks security updates in Bosch Rexroth controllers

Aug 8, 2019
mathworksllm-mathworks-c05d1a0f3ad97633CRITICAL

VxWorks security updates in Bosch Rexroth controllers

Aug 8, 2019

References

cert-portal.siemens.com / productcert/pdf/ssa-189842.pdf
Third Party Advisory
cert-portal.siemens.com / productcert/pdf/ssa-352504.pdf
Third Party Advisory
cert-portal.siemens.com / productcert/pdf/ssa-632562.pdf
Third Party Advisory
psirt.global.sonicwall.com / vuln-detail/SNWLID-2019-0009
Third Party Advisory
security.netapp.com / advisory/ntap-20190802-0001
Third Party Advisory
support2.windriver.com / index.php
Vendor Advisory
support2.windriver.com / index.php
Issue TrackingVendor Advisory
support.f5.com / csp/article/K41190253
Third Party Advisory
windriver.com / security/announcements/tcp-ip-network-stack-ipnet-urgent11
Vendor Advisory