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Fencer Vulns
high 7.5

CVE-2022-28328 json

A vulnerability has been identified in SCALANCE W1788-1 M12 (All versions < V3.0.0), SCALANCE W1788-2 EEC M12 (All versions < V3.0.0), SCAL…

published 2022-04-12 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-32780

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 61%
public exploits
0
none known

Summary

A vulnerability has been identified in SCALANCE W1788-1 M12 (All versions < V3.0.0), SCALANCE W1788-2 EEC M12 (All versions < V3.0.0), SCALANCE W1788-2 M12 (All versions < V3.0.0), SCALANCE W1788-2IA M12 (All versions < V3.0.0). Affected devices do not properly handle malformed Multicast LLC frames. This could allow an attacker to trigger a denial of service condition.

Patch / fix

  • siemens scalance_w1788-2ia_m12_firmware 3.0.0
  • siemens scalance_w1788-2_m12_firmware 3.0.0
  • siemens scalance_w1788-2_eec_m12_firmware 3.0.0
  • siemens scalance_w1788-1_m12_firmware 3.0.0

Vendor advisories

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

cisa ICSA-22-104-08 updated cvss 7.4

Siemens SCALANCE W1700

  • Siemens SCALANCE W1788-1 M12 <V3.0.0 Siemens SCALANCE W1788-2 EEC M12 <V3.0.0 Siemens SCALANCE W1788-2 M12 <V3.0.0 Siemens SCALANCE W1788-2IA M12 <V3.0.0
    affected: fixed in V3.0.0, workaround support.industry.siemens.com

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

Exploit prediction

0.95% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C

Affected products

  • Siemens SCALANCE W1788-1 M12
  • Siemens SCALANCE W1788-2 EEC M12
  • Siemens SCALANCE W1788-2 M12
  • Siemens SCALANCE W1788-2IA M12

Classification

Weakness
  • CWE-20 Improper Input Validation

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.