CVE-2016-8562

lowpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.036 · 89 %ileDEEURUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV

Likely / severe?

3.61% (89th) EPSS

CVSS 3.5 · low

Is it mine?

7 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

added 2022-03-03remediate by 2022-03-24

required action Apply updates per vendor instructions.

EPSS · scored 2026-10-28

Siemens SIMATIC CP 1543-1 Improper Privilege Management Vulnerability

A vulnerability has been identified in SIMATIC CP 1543-1 (All versions < V2.0.28), SIPLUS NET CP 1543-1 (All versions < V2.0.28). Under special conditions it was possible to write SNMP variables on port 161/udp which should be read-only and should only be configured with TIA-Portal. A write to these variables could reduce the availability or cause a denial-of-service.

remediations

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

A vendor fix is available.

FixedSIMATIC CP 1543-1siemens_psirt
Update to V2.0.28 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808678/
FixedSIPLUS NET CP 1543-1siemens_psirt
Update to V2.0.28 or later version
https://support.industry.siemens.com/cs/ww/en/view/109808678/

cvss

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

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–high · 3.5–7.5

v2.03.5lowAV:N/AC:M/Au:S/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 6.8 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.6 · impact 5.9

v3.15.3mediumAV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 1.6 · impact 5.9

v3.15.3mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE

v3.17.5highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USCWE-20US

affected products (7)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
Siemens AG SIMATIC CP 1543-1≤ 2.0.28fstec_bduRU
Siemens AG SIPLUS NET CP 1543-1≤ 2.0.28fstec_bduRU
siemens simatic cp 1543-1 firmware< 2.0.28nvdUScpe:2.3:o:siemens:simatic_cp_1543-1_firmware:*:*:*:*:*:*:*:*
siemens siplus net cp 1543-1 firmware< 2.0.28nvdUScpe:2.3:o:siemens:siplus_net_cp_1543-1_firmware:*:*:*:*:*:*:*:*
Siemens SIMATIC CP 1543-1< V2.0.28siemens_psirtDE
Siemens SIPLUS NET CP 1543-1< V2.0.28siemens_psirtDE

advisories (1)

Vendor and ecosystem advisories describing this.

SSA-672373SSA-672373: Vulnerabilities in CP 1543-1 before V2.0.282016-11-18csaf · siemens_psirtDE
SIMATIC CP 1543-1 devices before V2.0.28 contain two vulnerabilities that could allow authorized users to escalate their privileges on the CP or create a denial of service condition. Siemens has released updates for the affected products and recommends to update to the latest versions.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd siemens_psirt NVD CVE.org MITRE

published 2016-11-18modified 2026-06-17

references (14)

External citations — patches, advisories, analysis.

scry

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