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CVE-2016-9158

A vulnerability has been identified in SIMATIC S7-300 CPU family (All versions), SIMATIC S7-300 CPU family (incl. related ET200 CPUs and…

High7.5EPSS 3.1%
Published
Updated
Reserved
Assigned by
siemens

Description

A vulnerability has been identified in SIMATIC S7-300 CPU family (All versions), SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC S7-400 PN/DP V6 and below CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-400 PN/DP V7 CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-400 V6 and earlier CPU family (All versions), SIMATIC S7-400 V7 CPU family (All versions). Specially crafted packets sent to port 80/tcp could cause the affected devices to go into defect mode. A cold restart is required to recover the system.

Scores

CVSS scores of CVE-2016-9158, by who scored it
Scored byCVSSScoreVector
CISA-ADPADP (enrichment)3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVDNVD · Modified3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
3.1% · top 12% of all CVEs (2 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: yes · Technical impact: partial

Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

Affected products

  • Siemens AG · SIMATIC S7-300 CPU family

    • affected All versions
  • Siemens AG · SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants)

    • affected All versions
  • Siemens AG · SIMATIC S7-400 PN/DP V6 and below CPU family (incl. SIPLUS variants)

    • affected All versions
  • Siemens AG · SIMATIC S7-400 PN/DP V7 CPU family (incl. SIPLUS variants)

    • affected All versions
  • Siemens AG · SIMATIC S7-400 V6 and earlier CPU family

    • affected All versions
  • Siemens AG · SIMATIC S7-400 V7 CPU family

    • affected All versions

References (5)

Sources

The same CVE in the primary databases and aggregators, to check against.

Record last updated .