High

Denial of Service in Siemens SINEC Security Monitor Report Generation Date Parameter

IdentifiersCVE-2025-40831CWE-20· Improper Input Validation

CVE-2025-40831 affects Siemens SINEC Security Monitor all versions prior to V4.10.0. The vulnerability is caused by improper input validation of a date parameter used by the application's report generation functionality. An authenticated attacker with low privileges can supply crafted input to this date parameter and trigger a denial-of-service condition affecting report generation. The available advisory information does not provide the specific vulnerable function or code path beyond the report generation feature and the date parameter handling.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows an authenticated low-privileged attacker to disrupt availability of the report generation functionality in SINEC Security Monitor. Based on the published CVSS vector (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H), the primary impact is high availability loss, with no stated impact to confidentiality or integrity. The denial of service appears limited to the report functionality based on the available information.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, reduce exposure of SINEC Security Monitor by restricting network access to trusted users and management networks only, ensure the system is not directly accessible from the internet, place control system networks behind firewalls and isolate them from business networks, and use secure remote access methods such as VPNs that are fully updated. Siemens also recommends configuring the environment according to Siemens operational guidelines for Industrial Security and protecting network access to devices with appropriate mechanisms.

Remediation

Patch, then assume compromise.

Siemens recommends updating SINEC Security Monitor to version V4.10.0 or later. This is the vendor-provided remediation for the vulnerability.

PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType

SiemensSinec Security Monitorapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

5 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.

5 SOURCESView more in app

No news coverage yet. Advisories and community discussion only.

What this page doesn’t show

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Exposure mapping

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Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity3