How severe is CVE-2020-10042?

CVE-2020-10042 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-10042 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-10042?

CVE-2020-10042 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-2020-10042?

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

When was CVE-2020-10042 published?

CVE-2020-10042 was published on 2020-07-14 and last updated on 2026-06-17.

CVE-2020-10042

CVE-2020-10042 is a critical-severity vulnerability in Siemens Sicam Mmu Firmware with a CVSS 3.x base score of 9.8. 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-120.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
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). A buffer overflow in various positions of the web application might enable an attacker with access to the web application to execute arbitrary code over the network.

Frequently asked questions

What is CVE-2020-10042?: A vulnerability has been identified in SICAM MMU (All versions < V2.05), SICAM SGU (All versions), SICAM T (All versions < V2.18). A buffer overflow in various positions of the web application might enable an attacker with access to the web application to execute arbitrary code over the network.
How severe is CVE-2020-10042?: CVE-2020-10042 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-10042 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-10042?: CVE-2020-10042 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-2020-10042?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-10042 published?: CVE-2020-10042 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-2020-10038 — Critical (CVSS 9.8): A vulnerability has been identified in SICAM MMU (All versions < V2.05), SICAM SGU (All versions), SICAM T (All…
CVE-2020-10045 — High (CVSS 8.8): 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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