CVE-2012-3040

mediumpriority · track · 18EPSS 0.026 · 85 %ileDEEURUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
2.56% (85th) EPSS
CVSS 4.3 · medium
Is it mine?
21 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-28

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.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • FixedSIMATIC S7-1200 CPU V3 family (incl. SIPLUS variants)siemens_psirt

    Update to V3.0.2 or later version

  • MitigationSIMATIC S7-1200 CPU V2 family (incl. SIPLUS variants)siemens_psirt

    Deactivate the web server if not required. The web server is disabled by default.

  • MitigationSIMATIC S7-1200 CPU V3 family (incl. SIPLUS variants)siemens_psirt

    Deactivate the web server if not required. The web server is disabled by default.

  • MitigationSIMATIC S7-1200 PLCcisa_csaf_ot

    For this version of firmware (3.0.2), Siemens has also removed the HTTP PUT functionality, because it is not used by the S7-1200 Web server.

  • No fix plannedSIMATIC S7-1200 CPU V2 family (incl. SIPLUS variants)siemens_psirt

    Currently no fix is planned

02

cvss

Technical severity, 0–10. One row per scoring source.

9.6
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–critical · 3.7–9.6

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9
v2.08.3highAV:N/AC:M/Au:N/C:P/I:P/A:Csecondary · CISA US
v2.03.7lowAV:N/AC:M/Au:N/C:N/I:P/A:N/E:Usecondary · CVSS-BT (t0sche)
v3.15.3mediumAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nsecondary · FSTEC (BDU) RU
v3.19.6criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:Hsecondary · Siemens ProductCERT DE
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USprimaryCWE-79USCWE-79USCWE-80USCWE-80US
04

affected products (21)

Products and version ranges known to be affected.

showing 20 of 21
05

advisories (2)

Vendor and ecosystem advisories describing this.

  • SSA-279823SSA-279823: Cross-Site Scripting Vulnerability in SIMATIC S7-1200 CPU V2/V3 Before V3.0.22012-10-08csaf · siemens_psirtDE

    The web server on SIMATIC S7-1200 CPU V2/V3 Before V3.0.2 contains a cross-site scripting (XSS) vulnerability that could allow remote attackers to inject arbitrary web script or HTML via a crafted URI. Siemens has released a new version for SIMATIC S7-1200 CPU V3 family (incl. SIPLUS variants) and recommends to update to the latest version. Siemens recommends specific countermeasures for products where fixes are not, or not yet available.

  • ICSA-12-283-01Siemens S7-1200 Web Application Cross Site Scripting2012-07-13icsa · cisa_csaf_otUS

    This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov

06

also known as (5)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducisa_csaf_otnvdsiemens_psirtNVDCVE.orgMITRE
published 2012-10-10modified 2026-06-16
09

references (16)

External citations — patches, advisories, analysis.

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