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Fencer Vulns
medium 5.3

CVE-2022-27481 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-2022-31982

cvss
5.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 14%
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 resources of ARP requests. This could allow an attacker to cause a race condition that leads to a crash of the entire device.

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

0.24% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.3 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.7 AV:A/AC:M/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-362 Concurrent Execution using Shared Resource with Improper Synchronization

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.