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Fencer Vulns
high 8.8

CVE-2020-10045 json

A vulnerability has been identified in SICAM MMU (All versions < V2.05), SICAM SGU (All versions), SICAM T (All versions < V2.18).

published 2020-07-14 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-2510

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 64%
public exploits
0
none known

Summary

A vulnerability has been identified in SICAM MMU (All versions < V2.05), SICAM SGU (All versions), SICAM T (All versions < V2.18). An error in the challenge-response procedure could allow an attacker to replay authentication traffic and gain access to protected areas of the web application.

Patch / fix

  • siemens sicam_mmu_firmware 2.05
  • siemens sicam_t_firmware 2.18

Vendor advisories

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

cisa ICSA-20-196-03 updated cvss 8.3

Siemens SICAM MMU, SICAM T, and SICAM SGU

  • Siemens SICAM MMU <V2.05
    affected: fixed in V2.05, mitigation
  • Siemens SICAM SGU
    affected: mitigation
  • Siemens SICAM T <V2.18
    affected: fixed in V2.18, mitigation

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

Exploit prediction

1.07% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

  • Siemens AG SICAM MMU
  • Siemens AG SICAM SGU
  • Siemens AG SICAM T

Classification

Weakness
  • CWE-294 Authentication Bypass by Capture-replay

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.