How severe is CVE-2014-2909?

CVE-2014-2909 has a CVSS 2.0 base score of 5.8, rated medium severity.

Is CVE-2014-2909 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-2909?

CVE-2014-2909 primarily affects Siemens Simatic S7 Cpu 1200 Firmware. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-2909?

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

When was CVE-2014-2909 published?

CVE-2014-2909 was published on 2014-04-25 and last updated on 2026-06-17.

CVE-2014-2909

CVE-2014-2909 is a medium-severity vulnerability in Siemens Simatic S7 Cpu 1200 Firmware with a CVSS 2.0 base score of 5.8. 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-94.

Key facts

Severity: Medium (CVSS 2.0 base score 5.8)
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Siemens Simatic S7 Cpu 1200 Firmware
Published: 2014-04-25
Last modified: 2026-06-17

Description

CRLF injection vulnerability in the integrated web server on Siemens SIMATIC S7-1200 CPU devices 2.x and 3.x allows remote attackers to inject arbitrary HTTP headers via unspecified vectors.

Frequently asked questions

What is CVE-2014-2909?: CRLF injection vulnerability in the integrated web server on Siemens SIMATIC S7-1200 CPU devices 2.x and 3.x allows remote attackers to inject arbitrary HTTP headers via unspecified vectors.
How severe is CVE-2014-2909?: CVE-2014-2909 has a CVSS 2.0 base score of 5.8, rated medium severity.
Is CVE-2014-2909 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-2909?: CVE-2014-2909 primarily affects Siemens Simatic S7 Cpu 1200 Firmware. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-2909?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-2909 published?: CVE-2014-2909 was published on 2014-04-25 and last updated on 2026-06-17.

References

Affected products (8)

cpe:2.3:o:siemens:simatic_s7_cpu_1200_firmware:2.0:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7_cpu_1200_firmware:3.0:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7_cpu_1200_firmware:3.0.2:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_s7_cpu-1211c:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_s7_cpu_1212c:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_s7_cpu_1214c:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_s7_cpu_1215c:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_s7_cpu_1217c:-:*:*:*:*:*:*:*

More vulnerabilities in Siemens Simatic S7 Cpu 1200 Firmware

CVE-2014-2250 — High (CVSS 8.3): The random-number generator on Siemens SIMATIC S7-1200 CPU PLC devices with firmware before 4.0 does not have…
CVE-2014-2258 — High (CVSS 7.8): Siemens SIMATIC S7-1200 CPU PLC devices with firmware before 4.0 allow remote attackers to cause a denial of service…
CVE-2014-2254 — High (CVSS 7.8): Siemens SIMATIC S7-1200 CPU PLC devices with firmware before 4.0 allow remote attackers to cause a denial of service…
CVE-2014-2256 — High (CVSS 7.8): Siemens SIMATIC S7-1200 CPU PLC devices with firmware before 4.0 allow remote attackers to cause a denial of service…
CVE-2016-2846 — Medium (CVSS 6.5): Siemens SIMATIC S7-1200 CPU devices before 4.0 allow remote attackers to bypass a "user program block" protection…
CVE-2014-2252 — Medium (CVSS 6.1): Siemens SIMATIC S7-1200 CPU PLC devices with firmware before 4.0 allow remote attackers to cause a denial of service…

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