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NVD / CVE Program· CNA CERTVDE

CVE-2025-25271: OCPP Backend Configuration via Insecure Defaults

Noroxi assessment

Priority: Monitor (action score 35/100)

  • 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: 0.34% (FIRST EPSS).
  • Someone on the same network segment can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Phoenix Contact CHARX SEC-3000 1.7.3; Phoenix Contact CHARX SEC-3050 1.7.3; Phoenix Contact CHARX SEC-3100 1.7.3.

Low priority for now. Upgrade to Phoenix Contact CHARX SEC-3000 1.7.3; Phoenix Contact CHARX SEC-3050 1.7.3; Phoenix Contact CHARX SEC-3100 1.7.3 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 adjacent attacker is able to configure a new OCPP backend, due to insecure defaults for the configuration interface.

HighCVSS 8.8 · v3.1—No exploit Fix available
Published
Jul 8, 2025
Updated
Jun 17, 2026
EPSS
0.3% · 28th percentile

Report tools

JSON

Action score

35

Monitor

Low priority for now.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · CERTVDE
8.8
NVD has not scored this yet; the score shown is the CNA’s.

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-2025-25271

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

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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.

VendorProduct
phoenixcontactcharx sec-3000 firmware
phoenixcontactcharx sec-3000
phoenixcontactcharx sec-3050 firmware
phoenixcontactcharx sec-3050
phoenixcontactcharx sec-3100 firmware
phoenixcontactcharx sec-3100
phoenixcontactcharx sec-3150 firmware
phoenixcontactcharx sec-3150

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • phoenixcontact charx sec-3000 firmwarebefore 1.7.3
  • phoenixcontact charx sec-3050 firmwarebefore 1.7.3
  • phoenixcontact charx sec-3100 firmwarebefore 1.7.3
  • phoenixcontact charx sec-3150 firmwarebefore 1.7.3

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 CHARX SEC-3000

    • 0.0.0 and later · before 1.7.3affected · semver

  • Phoenix Contact CHARX SEC-3050

    • 0.0.0 and later · before 1.7.3affected · semver

  • Phoenix Contact CHARX SEC-3100

    • 0.0.0 and later · before 1.7.3affected · semver

  • Phoenix Contact CHARX SEC-3150

    • 0.0.0 and later · before 1.7.3affected · semver

Same product

phoenixcontact: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-25270Remote Code Execution via Unauthenticated Configuration Manipulation
    39Monitor
  • CVE-2024-6788Phoenix Contact: update feature from CHARX controller can be used to reset a low privilege user password
    39Monitor
  • CVE-2024-26001PHOENIX CONTACT: Out of bounds write only memory access
    39Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2025-24006Jul 8, 2025 · Privilege Escalation via Insecure SSH Permissions
    31Monitor
  • ← EarlierCVE-2025-25268Jul 8, 2025 · Unauthenticated Configuration Access via Exposed API Endpoint
    35Monitor
  • ← EarlierCVE-2025-25269Jul 8, 2025 · Local Privilege Escalation via Unauthenticated Command Injection
    33Monitor

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 CHARX SEC-30001.7.3Vendor (CNA)
Phoenix Contact CHARX SEC-30501.7.3Vendor (CNA)
Phoenix Contact CHARX SEC-31001.7.3Vendor (CNA)
Phoenix Contact CHARX SEC-31501.7.3Vendor (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

  • Someone on the same network segment 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
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Adjacent
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-1188 · Initialization of a Resource with an Insecure Default

CVSS vector

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

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