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Fencer Vulns
medium 5.5

CVE-2020-10040 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-2020-2505

cvss
5.5
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 9%
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 attacker with local access to the device might be able to retrieve some passwords in clear text.

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 6.2

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

0.19% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N

Affected products

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

Classification

Weakness
  • CWE-916 Use of Password Hash With Insufficient Computational Effort

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.