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Fencer Vulns
medium 5.4

CVE-2022-44731 json

A vulnerability has been identified in SIMATIC WinCC OA V3.15 (All versions < V3.15 P038), SIMATIC WinCC OA V3.16 (All versions < V3.16 P03…

published 2022-12-13 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-47663

cvss
5.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 47%
public exploits
0
none known

Summary

A vulnerability has been identified in SIMATIC WinCC OA V3.15 (All versions < V3.15 P038), SIMATIC WinCC OA V3.16 (All versions < V3.16 P035), SIMATIC WinCC OA V3.17 (All versions < V3.17 P024), SIMATIC WinCC OA V3.18 (All versions < V3.18 P014). The affected component allows to inject custom arguments to the Ultralight Client backend application under certain circumstances.

This could allow an authenticated remote attacker to inject arbitrary parameters when starting the client via the web interface (e.g., open attacker chosen panels with the attacker's credentials or start a Ctrl script).

Patch / fix

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-22-349-06 updated cvss 5.4

Siemens SIMATIC WinCC OA Ultralight Client

  • Siemens SIMATIC WinCC OA V3.15 <V3.15_P038
    affected: fixed in V3.15, mitigation winccoa.com
  • Siemens SIMATIC WinCC OA V3.16 <V3.16_P035
    affected: fixed in V3.16, mitigation winccoa.com
  • Siemens SIMATIC WinCC OA V3.17 <V3.17_P024
    affected: fixed in V3.17, mitigation winccoa.com
  • Siemens SIMATIC WinCC OA V3.18 <V3.18_P014
    affected: fixed in V3.18, mitigation winccoa.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

0.57% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
CNA 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
NVD 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Affected products

  • Siemens SIMATIC WinCC OA V3.15
  • Siemens SIMATIC WinCC OA V3.16
  • Siemens SIMATIC WinCC OA V3.17
  • Siemens SIMATIC WinCC OA V3.18

Classification

Weakness
  • CWE-88 Improper Neutralization of Argument Delimiters in a Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.