How severe is CVE-2020-10045?

CVE-2020-10045 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-10045 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-10045?

CVE-2020-10045 primarily affects Siemens Sicam Mmu Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-10045?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-10045 published?

CVE-2020-10045 was published on 2020-07-14 and last updated on 2026-06-17.

CVE-2020-10045

CVE-2020-10045 is a high-severity vulnerability in Siemens Sicam Mmu Firmware with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-294.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-294
Affected product: Siemens Sicam Mmu Firmware
Published: 2020-07-14
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2020-10045?: 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.
How severe is CVE-2020-10045?: CVE-2020-10045 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-10045 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-10045?: CVE-2020-10045 primarily affects Siemens Sicam Mmu Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-10045?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-10045 published?: CVE-2020-10045 was published on 2020-07-14 and last updated on 2026-06-17.

References

https://cert-portal.siemens.com/productcert/pdf/ssa-305120.pdf

Affected products (3)

cpe:2.3:o:siemens:sicam_mmu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:sicam_sgu_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:sicam_t_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Siemens Sicam Mmu Firmware

CVE-2020-10042 — Critical (CVSS 9.8): A vulnerability has been identified in SICAM MMU (All versions < V2.05), SICAM SGU (All versions), SICAM T (All…
CVE-2020-10038 — Critical (CVSS 9.8): A vulnerability has been identified in SICAM MMU (All versions < V2.05), SICAM SGU (All versions), SICAM T (All…
CVE-2020-10039 — High (CVSS 8.1): A vulnerability has been identified in SICAM MMU (All versions < V2.05), SICAM SGU (All versions), SICAM T (All…
CVE-2020-10044 — High (CVSS 7.5): A vulnerability has been identified in SICAM MMU (All versions < V2.05), SICAM SGU (All versions), SICAM T (All…
CVE-2020-10037 — High (CVSS 7.5): A vulnerability has been identified in SICAM MMU (All versions < V2.05), SICAM SGU (All versions), SICAM T (All…
CVE-2020-10043 — Medium (CVSS 6.1): A vulnerability has been identified in SICAM MMU (All versions < V2.05), SICAM SGU (All versions), SICAM T (All…

All CVEs affecting Siemens Sicam Mmu Firmware →

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