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CVE-2016-3963

26
FAUCET Score

CVE-2016-3963 describes a denial-of-service vulnerability in Siemens SCALANCE S613 devices, where remote attackers can disrupt the web server by sending traffic to TCP port 443. This vulnerability has a CVSSv3 score of 5.3 (Medium), indicating a low attack complexity and no user interaction required, with the primary impact being availability. While not listed on the KEV catalog, an ExploitDB entry (EDB-44721) exists, and it has garnered some community discussion and media coverage, suggesting awareness of its potential.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:h:siemens:scalance_s613:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
8.59%
Probability of exploitation in next 30 days
EPSS Percentile
94.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-44721 · May 23, 2018
This CVE's current EPSS score of 0.0859 is in the 93rd percentile among its peer group of 23,701 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Media Mentions

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

Remediation

Remediation records are not available for this CVE.

References

ics-cert.us-cert.gov / advisories/ICSA-16-103-02
exploit-db.com / exploits/44721
siemens.com / cert/pool/cert/siemens_security_advisory_ssa-751155.pdf