8.2

CVE-2026-24349: siemens simatic_wincc_unified_pc_runtime Cleartext Storage in a File or on Disk

CVSS: 8.2v4.0HighAnalyzed
Published 09-06-2026Last modified 09-06-2026
Open JSON

Vulnerability summary

CVE-2026-24349 is a high (CVSS 8.2) Cleartext Storage in a File or on Disk vulnerability in siemens simatic_wincc_unified_pc_runtime. EPSS estimates a 0.06% chance of exploitation in the next 30 days, higher than 0% of scored vulnerabilities.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.2/10
010
High · v4.0 (CVE.org)
EPSS score
0.06%
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. 09-06-2026
    PublishedVulnerability first disclosed.
  2. 09-06-2026
    Last modifiedVulnerability information updated.

Description

A vulnerability has been identified in SIMATIC WinCC Unified PC Runtime V16 (All versions), SIMATIC WinCC Unified PC Runtime V17 (All versions), SIMATIC WinCC Unified PC Runtime V18 (All versions), SIMATIC WinCC Unified PC Runtime V19 (All versions), SIMATIC WinCC Unified PC Runtime V20 (All versions), SIMATIC WinCC Unified PC Runtime V21 (All versions < V21 Update 2). Insufficient protection of key material in WinCC Certificate Manager that could allow an attacker to extract sensitive information.

CVSS metrics

4 scores · 2 sources · 2 versions

EPSS trend

Probability

0.06%

Chance of exploitation in the next 30 days

Percentile

0%

Versus all other CVEs

30-day change

0.00 pp

From 0.06% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.06%

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

Siemens7 products

1 vendor · 7 products

References

1 links