CVE-2016-7960

Siemens SIMATIC STEP 7 (TIA Portal) before 14 uses an improper format for managing TIA project files during version updates, which makes it easier for local users to obtain sensitive configuration information via unspecified vectors.

Published: 2016-10-13 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2016-7960 is rated Low Risk (18.9/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.33%). Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-7960

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.09% 0.33% +0.24%
2 2025-03-17 0.04% 0.09% +0.05%
3 2023-03-07 — 0.04% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-7960

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
2.5 3.0 LOW
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 1.0 1.4 [email protected]
1.9 2.0 LOW
AV:L/AC:M/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 3.4 2.9 [email protected]

Weakness enumeration for CVE-2016-7960

Affected software / configurations for CVE-2016-7960

Vendor Product Version Raw CPE
siemens simatic_step_7 <= 13.010 cpe:2.3:a:siemens:simatic_step_7:*:*:*:*:*:*:*:*

References for CVE-2016-7960

URL Tags
http://www.securityfocus.com/bid/93551 Third Party Advisory VDB Entry
http://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-869766.pdf Vendor Advisory
https://ics-cert.us-cert.gov/advisories/ICSA-16-287-03 Mitigation Patch Third Party Advisory US Government Resource VDB Entry
cvelogic Threat Intelligence