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NVD / CVE Program· CNA CERTVDE

CVE-2025-41770: Unauthenticated Denial of Service

Noroxi assessment

Priority: Monitor (action score 34/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.54% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • Fixed version: Phoenix Contact AXC F 1152 2026.0.3; Phoenix Contact AXC F 1252 2026.0.3; Phoenix Contact AXC F 2000 EA 2026.0.3.

Low priority for now. Upgrade to Phoenix Contact AXC F 1152 2026.0.3; Phoenix Contact AXC F 1252 2026.0.3; Phoenix Contact AXC F 2000 EA 2026.0.3 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

HighCVSS 8.7 · v4.0—No exploit Fix available
Published
Aug 12, 2026
Updated
Sep 29, 2026
EPSS
0.5% · 46th percentile

Report tools

JSON

Action score

34

Monitor

Low priority for now.

CVSS
34 / 40 · 8.7 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · CERTVDE
8.7
NVD has not scored this yet; the score shown is the CNA’s.

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2025-41770

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (CERTVDE). Independent of NVD's CPE analysis and usually ahead of it.

  • Phoenix Contact AXC F 1152

    • 2019.0.4 and later · before 2026.0.3affected · semver

  • Phoenix Contact AXC F 1252

    • 2019.0.4 and later · before 2026.0.3affected · semver

  • Phoenix Contact AXC F 2000 EA

    • 2019.0.4 and later · before 2026.0.3affected · semver

  • Phoenix Contact AXC F 2152

    • 2019.0.4 and later · before 2026.0.3affected · semver

  • Phoenix Contact AXC F 3152

    • 2019.0.4 and later · before 2026.0.3affected · semver

  • Phoenix Contact BPC 9102S

    • 2019.0.4 and later · before 2026.0.3affected · semver

  • Phoenix Contact BPC 9202S

    • 2019.0.4 and later · before 2026.0.3affected · semver

  • Phoenix Contact Catan C1

    • 2019.0.4 and later · before 2026.0.3affected · semver

  • Phoenix Contact EPC 1502

    • 2019.0.4 and later · before 2026.0.3affected · semver

  • Phoenix Contact EPC 1522

    • 2019.0.4 and later · before 2026.0.3affected · semver

  • Phoenix Contact RFC 4072R

    • 2019.0.4 and later · before 2026.0.3affected · semver

  • Phoenix Contact RFC 4072S

    • 2019.0.4 and later · before 2026.0.3affected · semver

Same product

phoenix contact: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-41769Unauthenticated Buffer Overflow in PROFINET Service
    37Monitor
  • CVE-2025-41668Phoenix Contact: File access due to the replacement of a critical file used by the service security-profile
    35Monitor
  • CVE-2025-41667Phoenix Contact: File access due to the replacement of a critical file used by the arp-preinit script
    35Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2025-41669May 27, 2026 · Insufficient Verification of Data Authenticity
    34Monitor
  • ← EarlierCVE-2025-41670May 27, 2026 · Untrusted Search Path
    34Monitor
  • Later →CVE-2025-41771Aug 12, 2026 · An authenticated attacker with low privileges can access an endpoint in the controller’s web interface that is vulnerable to SQL injection.
    21Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Phoenix Contact AXC F 11522026.0.3Vendor (CNA)
Phoenix Contact AXC F 12522026.0.3Vendor (CNA)
Phoenix Contact AXC F 2000 EA2026.0.3Vendor (CNA)
Phoenix Contact AXC F 21522026.0.3Vendor (CNA)
Phoenix Contact AXC F 31522026.0.3Vendor (CNA)
Phoenix Contact BPC 9102S2026.0.3Vendor (CNA)
Phoenix Contact BPC 9202S2026.0.3Vendor (CNA)
Phoenix Contact Catan C12026.0.3Vendor (CNA)
Phoenix Contact EPC 15022026.0.3Vendor (CNA)
Phoenix Contact EPC 15222026.0.3Vendor (CNA)
Phoenix Contact RFC 4072R2026.0.3Vendor (CNA)
Phoenix Contact RFC 4072S2026.0.3Vendor (CNA)
Phoenix Contact VL3 UPC 2440 EDGE2026.0.3Vendor (CNA)
Phoenix Contact VPLCNEXT CONTROL 10002026.0.3Vendor (CNA)
Phoenix Contact VPLCNEXT CONTROL 20002026.0.3Vendor (CNA)
Phoenix Contact VPLCNEXT CONTROL 30002026.0.3Vendor (CNA)
Phoenix Contact VPLCNEXT CONTROL 5002026.0.3Vendor (CNA)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
X

Weakness class (CWE)

CWE-770 · Allocation of Resources Without Limits or Throttling

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/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-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records