How severe is CVE-2022-28329?

CVE-2022-28329 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-28329 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-28329?

CVE-2022-28329 primarily affects Siemens Scalance W1788-2ia M12 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-28329?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-28329 published?

CVE-2022-28329 was published on 2022-04-12 and last updated on 2026-06-17.

CVE-2022-28329

CVE-2022-28329 is a medium-severity vulnerability in Siemens Scalance W1788-2ia M12 Firmware with a CVSS 3.x base score of 6.5. 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 3.3
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Siemens Scalance W1788-2ia M12 Firmware
Published: 2022-04-12
Last modified: 2026-06-17

Description

A vulnerability has been identified in SCALANCE W1788-1 M12 (All versions < V3.0.0), SCALANCE W1788-2 EEC M12 (All versions < V3.0.0), SCALANCE W1788-2 M12 (All versions < V3.0.0), SCALANCE W1788-2IA M12 (All versions < V3.0.0). Affected devices do not properly handle malformed TCP packets received over the RemoteCapture feature. This could allow an attacker to lead to a denial of service condition which only affects the port used by the RemoteCapture feature.

Frequently asked questions

What is CVE-2022-28329?: A vulnerability has been identified in SCALANCE W1788-1 M12 (All versions < V3.0.0), SCALANCE W1788-2 EEC M12 (All versions < V3.0.0), SCALANCE W1788-2 M12 (All versions < V3.0.0), SCALANCE W1788-2IA M12 (All versions < V3.0.0). Affected devices do not properly handle malformed TCP packets received over the RemoteCapture feature. This could allow an attacker to lead to a denial of service condition which only affects the port used by the RemoteCapture feature.
How severe is CVE-2022-28329?: CVE-2022-28329 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-28329 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-28329?: CVE-2022-28329 primarily affects Siemens Scalance W1788-2ia M12 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-28329?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-28329 published?: CVE-2022-28329 was published on 2022-04-12 and last updated on 2026-06-17.

References

https://cert-portal.siemens.com/productcert/pdf/ssa-392912.pdf

Affected products (4)

cpe:2.3:o:siemens:scalance_w1788-2ia_m12_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_w1788-2_m12_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_w1788-2_eec_m12_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_w1788-1_m12_firmware:*:*:*:*:*:*:*:*

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