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CVE-2025-25271

OCPP Backend Configuration via Insecure Defaults

HIGH

8.8

CVSS Score

Published: July 8, 2025 at 07:01 AM UTC

Updated: June 17, 2026 at 09:00 AM UTC

8 products affected across 1 vendorCharx Sec 3000 FirmwareCharx Sec 3050 FirmwareCharx Sec 3150 Firmware

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Severity

HIGH8.8

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

Description

An unauthenticated adjacent attacker is able to configure a new OCPP backend, due to insecure defaults for the configuration interface.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Charx Sec 3000 Firmware · Phoenix Contact

95%

v < 1.7.3

Affected range stops below 1.7.3, so it looks safe — our inference, not a vendor statement

phoenixcontact-charx-sec-3000 (same device)

Charx Sec 3050 Firmware · Phoenix Contact

95%

v < 1.7.3

Affected range stops below 1.7.3, so it looks safe — our inference, not a vendor statement

phoenixcontact-charx-sec-3050 (same device)

Charx Sec 3100 Firmware · Phoenix Contact

95%

v < 1.7.3

Affected range stops below 1.7.3, so it looks safe — our inference, not a vendor statement

phoenixcontact-charx-sec-3100 (same device)

Charx Sec 3150 Firmware · Phoenix Contact

95%

v < 1.7.3

Affected range stops below 1.7.3, so it looks safe — our inference, not a vendor statement

phoenixcontact-charx-sec-3150 (same device)

CHARX SEC-3000 · Phoenix Contact

60%

0.0.0 ≤ v < 1.7.30.0.0

Affected range stops below 1.7.3, so it looks safe — our inference, not a vendor statement

CHARX SEC-3050 · Phoenix Contact

60%

0.0.0 ≤ v < 1.7.30.0.0

Affected range stops below 1.7.3, so it looks safe — our inference, not a vendor statement

CHARX SEC-3100 · Phoenix Contact

60%

0.0.0 ≤ v < 1.7.30.0.0

Affected range stops below 1.7.3, so it looks safe — our inference, not a vendor statement

CHARX SEC-3150 · Phoenix Contact

60%

0.0.0 ≤ v < 1.7.30.0.0

Affected range stops below 1.7.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Third Party Advisory

Source: [email protected]

https://certvde.com/de/advisories/VDE-2025-019

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHCERTVDE

Attack Vector: ADJACENT_NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

CWE-1188

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