How severe is CVE-2022-40226?

CVE-2022-40226 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-40226 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-40226?

CVE-2022-40226 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-2022-40226?

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-2022-40226 published?

CVE-2022-40226 was published on 2022-10-11 and last updated on 2026-06-17.

CVE-2022-40226

CVE-2022-40226 is a high-severity vulnerability in Siemens 7kg8500-0aa00-0aa0 Firmware with a CVSS 3.x base score of 7.5. 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-384.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-384
Affected product: Siemens 7kg8500-0aa00-0aa0 Firmware
Published: 2022-10-11
Last modified: 2026-06-17

Description

A vulnerability has been identified in SICAM P850 (7KG8500-0AA00-0AA0) (All versions < V3.10), SICAM P850 (7KG8500-0AA00-2AA0) (All versions < V3.10), SICAM P850 (7KG8500-0AA10-0AA0) (All versions < V3.10), SICAM P850 (7KG8500-0AA10-2AA0) (All versions < V3.10), SICAM P850 (7KG8500-0AA30-0AA0) (All versions < V3.10), SICAM P850 (7KG8500-0AA30-2AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA01-0AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA01-2AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA02-0AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA02-2AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA11-0AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA11-2AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA12-0AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA12-2AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA31-0AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA31-2AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA32-0AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA32-2AA0) (All versions < V3.10), SICAM P855 (7KG8550-0AA00-0AA0) (All versions < V3.10), SICAM P855 (7KG8550-0AA00-2AA0) (All versions < V3.10), SICAM P855 (7KG8550-0AA10-0AA0) (All versions < V3.10), SICAM P855 (7KG8550-0AA10-2AA0) (All versions < V3.10), SICAM P855 (7KG8550-0AA30-0AA0) (All versions < V3.10), SICAM P855 (7KG8550-0AA30-2AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA01-0AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA01-2AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA02-0AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA02-2AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA11-0AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA11-2AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA12-0AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA12-2AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA31-0AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA31-2AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA32-0AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA32-2AA0) (All versions < V3.10), SICAM T (All versions < V3.0). Affected devices accept user defined session cookies and do not renew the session cookie after login/logout. This could allow an attacker to take over another user's session after login.

Frequently asked questions

What is CVE-2022-40226?: A vulnerability has been identified in SICAM P850 (7KG8500-0AA00-0AA0) (All versions < V3.10), SICAM P850 (7KG8500-0AA00-2AA0) (All versions < V3.10), SICAM P850 (7KG8500-0AA10-0AA0) (All versions < V3.10), SICAM P850 (7KG8500-0AA10-2AA0) (All versions < V3.10), SICAM P850 (7KG8500-0AA30-0AA0) (All versions < V3.10), SICAM P850 (7KG8500-0AA30-2AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA01-0AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA01-2AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA02-0AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA02-2AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA11-0AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA11-2AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA12-0AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA12-2AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA31-0AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA31-2AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA32-0AA0) (All versions < V3.10), SICAM P850 (7KG8501-0AA32-2AA0) (All versions < V3.10), SICAM P855 (7KG8550-0AA00-0AA0) (All versions < V3.10), SICAM P855 (7KG8550-0AA00-2AA0) (All versions < V3.10), SICAM P855 (7KG8550-0AA10-0AA0) (All versions < V3.10), SICAM P855 (7KG8550-0AA10-2AA0) (All versions < V3.10), SICAM P855 (7KG8550-0AA30-0AA0) (All versions < V3.10), SICAM P855 (7KG8550-0AA30-2AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA01-0AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA01-2AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA02-0AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA02-2AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA11-0AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA11-2AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA12-0AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA12-2AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA31-0AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA31-2AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA32-0AA0) (All versions < V3.10), SICAM P855 (7KG8551-0AA32-2AA0) (All versions < V3.10), SICAM T (All versions < V3.0). Affected devices accept user defined session cookies and do not renew the session cookie after login/logout. This could allow an attacker to take over another user's session after login.
How severe is CVE-2022-40226?: CVE-2022-40226 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-40226 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-40226?: CVE-2022-40226 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-2022-40226?: 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-2022-40226 published?: CVE-2022-40226 was published on 2022-10-11 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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