CVE-2026-25569

High

Published: 10 March 2026

Published

10 March 2026

Modified

13 March 2026

KEV Added

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Patch

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CVSS Score 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0002 3.9th percentile

Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-25569 is a high-severity Out-of-bounds Write (CWE-787) vulnerability in Siemens Sicam Siapp Sdk. Its CVSS base score is 7.4 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 3.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploitation for Privilege Escalation (T1068) and 1 other technique.

Threat & Defense Details

Likely Mitigating ControlsAI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SI-16 Memory Protection

addresses: CWE-787

Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.

MITRE ATT&CK Enterprise TechniquesAI

T1068 Exploitation for Privilege Escalation Privilege Escalation

Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.

attack.mitre.org →

T1499.004 Application or System Exploitation Impact

Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.

attack.mitre.org →

Why these techniques?

Local out-of-bounds write enables arbitrary code execution (T1068 Exploitation for Privilege Escalation) or application DoS (T1499.004 Application or System Exploitation) when attacker-supplied input reaches the vulnerable SDK code path.

Confidence: MEDIUM · MITRE ATT&CK Enterprise v18.1

NVD Description

A vulnerability has been identified in SICAM SIAPP SDK (All versions < V2.1.7). An out-of-bounds write vulnerability exists in SICAM SIAPP SDK. This could allow an attacker to write data beyond the intended buffer, potentially leading to denial of service,…

or arbitrary code execution.

Deeper analysisAI

CVE-2026-25569 is an out-of-bounds write vulnerability (CWE-787) in the SICAM SIAPP SDK, affecting all versions prior to V2.1.7. This flaw allows an attacker to write data beyond the intended buffer boundaries within the SDK, which is a software development kit used in Siemens industrial control systems.

Exploitation requires local access (AV:L) with high attack complexity (AC:H) and no privileges (PR:N) or user interaction (UI:N), resulting in no scope change (S:U) but high impacts across confidentiality, integrity, and availability (C:H/I:H/A:H), for an overall CVSS v3.1 score of 7.4. A successful attacker could achieve denial of service or arbitrary code execution.

Siemens security advisory SSA-903736, available at https://cert-portal.siemens.com/productcert/html/ssa-903736.html, details the vulnerability and mitigation steps.