5.3

CVE-2016-2201: siemens simatic_s7-1500_cpu_firmware Improper Input Validation

CVSS: 5.3v3.0MediumModified
Published 08-02-2016Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2016-2201 is a medium (CVSS 5.3) Improper Input Validation vulnerability in siemens simatic_s7-1500_cpu_firmware. EPSS estimates a 2.92% chance of exploitation in the next 30 days, higher than 86.8% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.0 (NVD)
EPSS score
2.92%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 08-02-2016
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

Siemens SIMATIC S7-1500 CPU devices before 1.8.3 allow remote attackers to bypass a replay protection mechanism via packets on TCP port 102.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

2.92%

Chance of exploitation in the next 30 days

Percentile

87%

Versus all other CVEs

30-day change

0.00 pp

From 2.92% on 19-09-2026

19-09-202619-10-2026
EPSS score
2.92%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Siemens1 product

1 vendor · 1 product

References

5 links