How severe is CVE-2022-29873?

CVE-2022-29873 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-2022-29873 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-29873?

CVE-2022-29873 primarily affects Siemens 7kg8500-0aa00-0aa0 Firmware. In total, 36 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-29873?

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-2022-29873 published?

CVE-2022-29873 was published on 2022-05-20 and last updated on 2026-06-17.

CVE-2022-29873

CVE-2022-29873 is a critical-severity vulnerability in Siemens 7kg8500-0aa00-0aa0 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-141.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
CVSS v4: 9.3
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-141
Affected product: Siemens 7kg8500-0aa00-0aa0 Firmware
Published: 2022-05-20
Last modified: 2026-06-17

Description

A vulnerability has been identified in SICAM T (All versions < V3.0). Affected devices do not properly validate parameters of certain GET and POST requests. This could allow an unauthenticated attacker to set the device to a denial of service state or to control the program counter and, thus, execute arbitrary code on the device.

Frequently asked questions

What is CVE-2022-29873?: A vulnerability has been identified in SICAM T (All versions < V3.0). Affected devices do not properly validate parameters of certain GET and POST requests. This could allow an unauthenticated attacker to set the device to a denial of service state or to control the program counter and, thus, execute arbitrary code on the device.
How severe is CVE-2022-29873?: CVE-2022-29873 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-2022-29873 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-29873?: CVE-2022-29873 primarily affects Siemens 7kg8500-0aa00-0aa0 Firmware. In total, 36 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-29873?: 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-2022-29873 published?: CVE-2022-29873 was published on 2022-05-20 and last updated on 2026-06-17.

References

Affected products (36)

cpe:2.3:o:siemens:7kg8500-0aa00-0aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8500-0aa00-2aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8500-0aa10-0aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8500-0aa10-2aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8500-0aa30-0aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8500-0aa30-2aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8501-0aa01-0aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8501-0aa01-2aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8501-0aa02-0aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8501-0aa02-2aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8501-0aa11-0aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8501-0aa11-2aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8501-0aa12-0aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8501-0aa12-2aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8501-0aa31-0aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8501-0aa31-2aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8501-0aa32-0aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8501-0aa32-2aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8550-0aa00-0aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8550-0aa00-2aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8550-0aa10-0aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8550-0aa10-2aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8550-0aa30-0aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8550-0aa30-2aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8551-0aa01-0aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8551-0aa01-2aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8551-0aa02-0aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8551-0aa02-2aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8551-0aa11-0aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8551-0aa11-2aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8551-0aa12-0aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8551-0aa12-2aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8551-0aa31-0aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8551-0aa31-2aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8551-0aa32-0aa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:7kg8551-0aa32-2aa0_firmware:*:*:*:*:*:*:*:*

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