How severe is CVE-2012-3040?

CVE-2012-3040 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2012-3040 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-3040?

CVE-2012-3040 primarily affects Siemens Simatic S7-1200 Firmware. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-3040?

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

When was CVE-2012-3040 published?

CVE-2012-3040 was published on 2012-10-10 and last updated on 2026-06-16.

CVE-2012-3040

CVE-2012-3040 is a medium-severity vulnerability in Siemens Simatic S7-1200 Firmware with a CVSS 2.0 base score of 4.3. 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-79.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Siemens Simatic S7-1200 Firmware
Published: 2012-10-10
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in the web server on Siemens SIMATIC S7-1200 PLCs 2.x through 3.0.1 allows remote attackers to inject arbitrary web script or HTML via a crafted URI.

Frequently asked questions

What is CVE-2012-3040?: Cross-site scripting (XSS) vulnerability in the web server on Siemens SIMATIC S7-1200 PLCs 2.x through 3.0.1 allows remote attackers to inject arbitrary web script or HTML via a crafted URI.
How severe is CVE-2012-3040?: CVE-2012-3040 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2012-3040 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-3040?: CVE-2012-3040 primarily affects Siemens Simatic S7-1200 Firmware. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-3040?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-3040 published?: CVE-2012-3040 was published on 2012-10-10 and last updated on 2026-06-16.

References

Affected products (9)

cpe:2.3:o:siemens:simatic_s7-1200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-1200_cpu_1211c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-1200_cpu_1212c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-1200_cpu_1212fc_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-1200_cpu_1214_fc_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-1200_cpu_1214c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-1200_cpu_1215_fc_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-1200_cpu_1215c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-1200_cpu_1217c_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Siemens Simatic S7-1200 Firmware

CVE-2013-2780 — High (CVSS 7.8): Siemens SIMATIC S7-1200 PLCs 2.x and 3.x allow remote attackers to cause a denial of service (defect-mode transition…
CVE-2013-0700 — High (CVSS 7.8): Siemens SIMATIC S7-1200 PLCs 2.x and 3.x allow remote attackers to cause a denial of service (defect-mode transition…
CVE-2020-28400 — High (CVSS 7.5): Affected devices contain a vulnerability that allows an unauthenticated attacker to trigger a denial of service…
CVE-2018-13815 — High (CVSS 7.5): A vulnerability has been identified in SIMATIC S7-1200 (All versions), SIMATIC S7-1500 (All Versions < V2.6). An…
CVE-2017-12741 — High (CVSS 7.5): Specially crafted packets sent to port 161/udp could cause a denial of service condition. The affected devices must be…
CVE-2019-13945 — Medium (CVSS 6.8): A vulnerability has been identified in SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions), SIMATIC…

All CVEs affecting Siemens Simatic S7-1200 Firmware →

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