CVE-2025-41770Suited to automated attack · CISA

Unauthenticated Denial of Service

CVSS score

8.7

EPSS probability

%0.5

Risk score

0.0

Published

2 mo ago

Overview Public Exploits (0)Newsroom Vulnerability Timeline

Patch status has not yet been verified

Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.

Impact on My Inventory

Only the personal products you have added to your account are assessed; an organisation's inventory does not appear here.

Checking session…

Vulnerability description

CVE AI research

The stored explanation is shown at once; refreshing evaluates the sources again.

DayBreach AI Explanation

Verified against sources

Unauthenticated Denial of Service in Phoenix Contact PLCnext Engineer Interface

Sources read

Source agreement

0/2

Evidence confidence

%39

Short explanation

An unauthenticated denial-of-service vulnerability in the PLCnext Engineer interface of Phoenix Contact devices allows remote attackers to disrupt access. Exploitation requires no authentication and results in service interruption until manual restart. Patch status is UNKNOWN due to lack of reliable evidence.

Why does it matter?

This vulnerability allows remote attackers to disrupt critical industrial operations without authentication. Affected devices include widely used PLCnext control units. Without timely patching, operations may face prolonged downtime. Patch status is UNKNOWN, requiring vendor confirmation for mitigation.

What should be done?

Upgrade to version 2026.0.3 or later as per vendor advisory
Monitor for service interruptions
Apply official patch if available

Note on uncertainty

2 alanda kaynak uyuşmazlığı var. DayBreach bu değerleri saklamadı; kaynak karşılaştırması aşağıda gösteriliyor.

Chain of evidence and sources3 verified claims

Phoenix Contact cihazlarının PLCnext Engineer iletişim arayüzü üzerinde, kimlik doğrulama gerektirmeyen bir reddedilen hizmet (DoS) açıklığı vardır. Bu, uygulama üzerinden uzak bir saldırıcının erişimi kesmesine neden olur. Başarıyla istismar edildiğinde, hizmet manuel olarak yeniden başlatılana kadar iletişim kesilir.

S0 · daybreach-canonical

Bu açıklık, AXC F 1152, AXC F 1252, VPLCNEXT CONTROL 1000 gibi çok sayıda Phoenix Contact ürününe etki eder ve 2019.0.4 ile 2026.0.3 arasında olan sürümlerde etkilidir.

S0 · daybreach-canonical

CVSS temel puanı 8.7 (YÜKSEK ciddiyet) ve CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N vektörüdür. Yama durumu BİLGİSİZ çünkü resmî kaynaklarda güvenilir bilgi yoktur.

S0 · daybreach-canonical

Show the technical text from the sources

An unauthenticated denial-of-service vulnerability in the device's PLCnext Engineer communication interface allow an remote attacker to interrupt access via the client application. Successful exploitation prevents communication until the PLCnext service is manually restarted.

CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CWE: CWE-770

Explanation produced with the local qwen3:4b-instruct model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2025-41770 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

ID	VENDOR	PRODUCT	ACTION
1	Phoenix Contact	AXC F 1152	View
2	Phoenix Contact	AXC F 1252	View
3	Phoenix Contact	AXC F 2000 EA	View
4	Phoenix Contact	AXC F 2152	View
5	Phoenix Contact	AXC F 3152	View
6	Phoenix Contact	BPC 9102S	View
7	Phoenix Contact	BPC 9202S	View
8	Phoenix Contact	RFC 4072R	View
9	Phoenix Contact	RFC 4072S	View
10	Phoenix Contact	VL3 UPC 2440 EDGE	View
11	Phoenix Contact	VPLCNEXT CONTROL 1000	View
12	Phoenix Contact	VPLCNEXT CONTROL 2000	View
13	Phoenix Contact	VPLCNEXT CONTROL 3000	View
14	Phoenix Contact	VPLCNEXT CONTROL 500	View
15	Phoenix Contact	Catan C1	View
16	Phoenix Contact	EPC 1502	View
17	Phoenix Contact	EPC 1522	View

Total affected vendors: 1|Products: 17

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCORE	VERSION	SEVERITY	VECTOR	SOURCE
8.7	CVSS V40	HIGH	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X	NVD
8.7	CVSS V4_0	HIGH	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	CVE CNA
7.5	CVSS V31	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	NVD
7.5	CVSS V3_1	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CVE CNA

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.

Restrict access to internet-facing services and apply network segmentation.

Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.

Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-41770 is associated with the following CWEs:

CWE-770: Allocation of Resources Without Limits or Throttling

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-41770 weaknesses.

CAPEC-66: SQL Injection CAPEC-126: Path Traversal CAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden

PermissionsGerekmiyor

UserGerekmiyor

Official Sources and Advisories

https://phoenixcontact.csaf-tp.certvde.com/.well-known/csaf/white/2026/vde-2025-056.jsonvendor-advisory

CVSS Vector Radar Chart

8.7 / 10

Vulnerability Scoring Details

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone required

User InteractionNone required

Confidentiality (Gizlilik)Low

Integrity (Bütünlük)None

Availability (Erişilebilirlik)High

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

Phoenix Contact

Weakness Type (CWE & CAPEC)

CWE-770

Similar Vulnerabilities

8.8

CVE-2026-27559Command Injection via GET in /api/status/data