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CVE-2019-13921

24
FAUCET Score

CVE-2019-13921 is a denial-of-service vulnerability affecting all versions of Siemens SIMATIC WinAC RTX (F) 2010 prior to SP3 Update 1. An unauthenticated attacker with network access can trigger this by sending a large HTTP request to the service, requiring no user interaction or system privileges. This vulnerability has a CVSS v3.1 score of 7.5 (HIGH), indicating a high impact on availability. There is currently no public exploit code available (Metasploit, Nuclei, ExploitDB), nor is it listed in the KEV catalog, suggesting it is not being actively exploited in the wild. Community discussion and media coverage for this CVE are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:siemens:simatic_winac_rtx_\(f\)_2010:*:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:siemens:simatic_winac_rtx_\(f\)_2010:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:siemens:simatic_winac_rtx_\(f\)_2010:-:update_1:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:siemens:simatic_winac_rtx_\(f\)_2010:-:update_2:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:siemens:simatic_winac_rtx_\(f\)_2010:-:update_3:*:*:*:*:*:*

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
1.37%
Probability of exploitation in next 30 days
EPSS Percentile
69.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0137 is in the 49th percentile among its peer group of 51,551 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

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

cert-portal.siemens.com / productcert/pdf/ssa-878278.pdf
Vendor Advisory