CVE-2025-54851

Description

A denial of service vulnerability exists in the Modbus TCP and Modbus RTU over TCP functionality of Socomec DIRIS Digiware M-70 1.6.9. A specially crafted series of network requests can lead to a denial of service. An attacker can send a sequence of unauthenticated packets to trigger this vulnerability.An attacker can trigger this denial-of-service condition by sending a single Modbus TCP message to port 503 using the Write Single Register function code (6) to write the value 1 to register 4352. This action changes the Modbus address to 15. After this message is sent, the device will be in a denial-of-service state.

Overview

State: PUBLISHED
Assigner (CNA): talos
CVSS severity: HIGH
CVSS score: 7.5 / 10
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Effective score: 7.5 / 10 HIGH source: CNA overview
CWE(s): CWE-306
Reserved: 2025-07-31
Published: 2025-12-01 16:25 UTC
Last updated: 2025-12-01 21:17 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2025/54xxx/CVE-2025-54851.json
Linked Threat: CVE-2025-54851 — CVE-2025-54851

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2025-12-01 16:15:54 UTC
NVD last modified: 2026-06-17 09:40:47 UTC
NVD CVSS v3.1: 7.5 / 10 HIGH source: talos-cna@cisco.com
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability subscore: 3.9 / 10
Impact subscore: 3.6 / 10
EPSS score: 0.0041 (probability of exploitation in next 30 days)
EPSS percentile: 34.07% vs all CVEs — higher = more likely to be exploited, as of 2026-08-06

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2025-200031
Assigner: talos
Published: Dec 1, 2025, 3:25:13 PM
Updated: Dec 1, 2025, 8:17:51 PM
EUVD base score (CVSS 3.1): 7.5 / 10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EUVD-reported EPSS: 0.1100
Vendors: SOCOMEC
Products: DIRIS Digiware M-70 (1.6.9)
Aliases: GHSA-f949-3w42-ghhf

ENISA description: A denial of service vulnerability exists in the Modbus TCP and Modbus RTU over TCP functionality of Socomec DIRIS Digiware M-70 1.6.9. A specially crafted series of network requests can lead to a denial of service. An attacker can send a sequence of unauthenticated packets to trigger this vulnerability.An attacker can trigger this denial-of-service condition by sending a single Modbus TCP message to port 503 using the Write Single Register function code (6) to write the value 1 to register 4352. This action changes the Modbus address to 15. After this message is sent, the device will be in a denial-of-service state.

EUVD references (1)

https://talosintelligence.com/vulnerability_reports/TALOS-2025-2248

Affected products (1)

Vendor	Product	Versions	Platforms
Socomec	DIRIS Digiware M-70	`1.6.9` (affected)	—

Affected products — CPE 2.3 (2) NVD

NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.

cpe:2.3:o:socomec:diris_m-70_firmware:1.6.9:*:*:*:*:*:*:*
cpe:2.3:h:socomec:diris_m-70:-:*:*:*:*:*:*:*

Vendor references (1)

References embedded in the original CVE record by the assigning CNA.

https://talosintelligence.com/vulnerability_reports/TALOS-2025-2248

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (1)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://talosintelligence.com/vulnerability_reports/TALOS-2025-2248 talos-cna@cisco.com Vendor Advisory

Indicators (1)

IOCs linked to the auto-promoted Threat row.

Type	Value	VirusTotal	Attached
domain	`vulnerability.an`	no local data	2026-05-18 21:18 UTC

Remediations (17)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

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The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

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Microsoft mitigates YellowKey BitLocker bypass, no patch yet

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NVD - cve-2025-54821

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An official website of the United States government Here's how you know

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Microsoft Releases December 2025 Patch Tuesday Updates

web:petri.com

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AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2025-54851.json.

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