How severe is CVE-2022-36323?

CVE-2022-36323 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-36323 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-36323?

CVE-2022-36323 primarily affects Siemens Scalance M-800 Firmware. In total, 90 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-36323?

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-2022-36323 published?

CVE-2022-36323 was published on 2022-08-10 and last updated on 2026-06-17.

CVE-2022-36323

CVE-2022-36323 is a critical-severity vulnerability in Siemens Scalance M-800 Firmware with a CVSS 3.x base score of 9.1. 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-74.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-74
Affected product: Siemens Scalance M-800 Firmware
Published: 2022-08-10
Last modified: 2026-06-17

Description

Affected devices do not properly sanitize an input field. This could allow an authenticated remote attacker with administrative privileges to inject code or spawn a system root shell.

Frequently asked questions

What is CVE-2022-36323?: Affected devices do not properly sanitize an input field. This could allow an authenticated remote attacker with administrative privileges to inject code or spawn a system root shell.
How severe is CVE-2022-36323?: CVE-2022-36323 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-36323 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-36323?: CVE-2022-36323 primarily affects Siemens Scalance M-800 Firmware. In total, 90 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-36323?: 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-2022-36323 published?: CVE-2022-36323 was published on 2022-08-10 and last updated on 2026-06-17.

References

Affected products (90)

cpe:2.3:o:siemens:scalance_m-800_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_s615_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_sc-600_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_sc622-2c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_sc632-2c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_sc636-2c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_sc642-2c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_sc646-2c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_w700_ieee_802.11ax_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_w700_ieee_802.11n_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_w700_ieee_802.11ac_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xb-200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xb205-3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xb205-3ld_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xb208_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xb213-3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xb213-3ld_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xb216_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xc-200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xc206-2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xc206-2g_poe__firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xc206-2g_poe_eec_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xc206-2sfp_eec_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xc206-2sfp_g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xc206-2sfp_g_\(e\/ip\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xc206-2sfp_g_eec_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xc208_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xc208eec_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xc208g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xc208g_\(e\/ip\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xc208g_eec_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xc208g_poe_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xc216_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xc216-4c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xc216-4c_g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xc216-4c_g_\(e\/ip\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xc216-4c_g_eec_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xc216eec_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xc224__firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_xc224-4c_g__firmware:*:*:*:*:*:*:*:*

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