Siemens SIMATIC S7-300 PN/SIMATIC S7-400 PN 3.2.12 input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Siemens SIMATIC S7-300 PN and SIMATIC S7-400 PN 3.2.12. Affected by this vulnerability is an unknown functionality. The manipulation results in input validation. This vulnerability was named CVE-2016-9158. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Siemens SIMATIC S7-300 PN and SIMATIC S7-400 PN 3.2.12 (SCADA Software). It has been classified as problematic. Affected is an unknown functionality. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability. CVE summarizes:

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.

The bug was discovered 12/13/2016. The weakness was presented 12/17/2016 (Website). The advisory is available at securityfocus.com. This vulnerability is traded as CVE-2016-9158 since 11/03/2016. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 06/03/2026).

The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $5k-$25k.

It is possible to mitigate the weakness by firewalling tcp/80.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 94820†). See VDB-94579 for similar entry. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

VulDB Base Score: 5.3
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

ADP CISA Base Score: 7.5
ADP CISA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 103180
OpenVAS Name: Siemens SIMATIC S7-300/400 PLC Multiple Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Firewalling: 🔍

Timelineinfo

11/03/2016 🔍
12/09/2016 +36 days 🔍
12/13/2016 +4 days 🔍
12/16/2016 +3 days 🔍
12/17/2016 +1 days 🔍
12/17/2016 +0 days 🔍
06/03/2026 +3454 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-731239⛔
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-9158 (🔍)
GCVE (CVE): GCVE-0-2016-9158
GCVE (VulDB): GCVE-100-94578
SecurityFocus: 94820 - SIMATIC S7-300 and S7-400 CPUs Denial of Service and Information Disclosure Vulnerabilities
SecurityTracker: 1037434

See also: 🔍

Entryinfo

Created: 12/17/2016 19:23
Updated: 06/03/2026 00:00
Changes: 12/17/2016 19:23 (61), 07/09/2019 17:16 (7), 10/12/2022 08:57 (5), 06/03/2026 00:00 (27)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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