CVE-2016-2846

mediumpriority · track · 27EPSS 0.017 · 77 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.69% (77th) EPSS

CVSS 6.4 · medium

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

Siemens SIMATIC S7-1200 CPU devices before 4.0 allow remote attackers to bypass a "user program block" protection mechanism via unspecified vectors.

remediations

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

No vendor fix yet; a mitigation is available.

MitigationSIMATIC S7-1200 CPU familycisa_csaf_ot
As a general security measure Siemens strongly recommends to protect network access to the web interface of S7-1200 CPUs with appropriate mechanisms. Siemens advises to configure the environment according to Siemens operational guidelines in order to run the devices in a protected IT environment.

cvss

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

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.06.4mediumAV:N/AC:L/Au:N/C:P/I:P/A:Nprimary · NVD / NIST USexploitability 10 · impact 4.9

v3.06.5mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 2.5

v3.06.5mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Nsecondary · CISA US

v3.06mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-254USprimaryCWE-693US

affected products (4)

Products and version ranges known to be affected.

Siemens SIMATIC S7-1200 CPU family: <V4.0all versionscisa_csaf_otUS
Siemens SIMATIC S7-1200 CPU family< V4.0cisa_csaf_otUS
n/a n/a≤ n/aenisa_euvdEU
siemens simatic s7 cpu 1200 firmware≤ 3.0.2nvdUScpe:2.3:o:siemens:simatic_s7_cpu_1200_firmware:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-16-075-01Siemens SIMATIC S7-1200 CPU Protection Mechanism Failure2016-12-17icsa · 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

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot nvd NVD CVE.org MITRE

published 2016-03-16modified 2026-06-17

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+795 more

references (7)

External citations — patches, advisories, analysis.

scry

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