Is CVE-2020-15782 actively exploited?

No active exploitation of CVE-2020-15782 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-15782 be exploited remotely?

Yes. CVE-2020-15782 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-15782?

CVE-2020-15782 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2020-15782

CWE-119Published: May 28, 2021· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) (All versions), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions < V21.9), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions < V4.5.0), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V2.9.2), SIMATIC S7-1500 Software Controller (All versions < V21.9), SIMATIC S7-PLCSIM Advanced (All versions < V4.0), SINAMICS PERFECT HARMONY GH180 Drives (Drives manufactured before 2021-08-13), SINUMERIK MC (All versions < V6.15), SINUMERIK ONE (All versions < V6.15). Affected devices are vulnerable to a memory protection bypass through a specific operation. A remote unauthenticated attacker with network access to port 102/tcp could potentially write arbitrary data and code to protected memory areas or read sensitive data to launch further attacks.

NVD Source

Technical Analysis

CVE-2020-15782 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

siemens63 product(s)

simatic driver controller firmwarecpu 1504d tfcpu 1507d tfs7-1200 cpu firmwarecpu 1211ccpu 1212ccpu 1212fccpu 1214ccpu 1214fccpu 1215ccpu 1215fccpu 1217c+51

Source: NVD CPE · 63 total CPE entries