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CVE-2014-2258

21
FAUCET Score

CVE-2014-2258 is a denial-of-service vulnerability affecting Siemens SIMATIC S7-1200 CPU PLC devices with firmware versions prior to 4.0. Remote attackers can exploit this flaw by sending specially crafted HTTPS packets, causing the device to transition into a defect mode. The vulnerability has a CVSS score of 7.8, indicating high severity, and requires no authentication or complex attack conditions. Its impact is a complete loss of availability for the affected PLC. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.0.2CPE matchmatch criteria
cpe:2.3:o:siemens:simatic_s7_cpu_1200_firmware:*:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:siemens:simatic_s7_cpu_1200_firmware:3.0:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:h:siemens:simatic_s7_cpu-1211c:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:h:siemens:simatic_s7_cpu_1212c:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:h:siemens:simatic_s7_cpu_1214c:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.8HIGH

AV:N/AC:L/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.64%
Probability of exploitation in next 30 days
EPSS Percentile
90.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0464 is in the 84th percentile among its peer group of 51,553 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, 0.1 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

ics-cert.us-cert.gov / advisories/ICSA-14-079-02
US Government Resource
cert-portal.siemens.com / productcert/pdf/ssa-654382.pdf
siemens.com / innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-654382.pdf
Vendor Advisory