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CVE-2025-52543

Login to the application services using only the password hash

HIGH
7.5
CVSS Score
Published: September 2, 2025 at 11:24 AM UTC
Updated: October 23, 2026 at 10:10 PM UTC
2 products affected across 2 vendorsE3 Supervisory Controller FirmwareE3 Supervisory Control· also runs on 7 platforms

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Severity
HIGH7.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

E3 Site Supervisor Control (firmware version < 2.31F01) application services (MGW and RCI) uses client side hashing for authentication. An attacker can authenticate by obtaining only the password hash.

Affected

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

E3 Supervisory Controller Firmware· Copeland
95%
v < 2.31f01
copeland-site-supervisor-bx-860-1240 (environment) · copeland-site-supervisor-bxe-860-1245 (environment) · copeland-site-supervisor-cx-860-1260 (environment) · copeland-site-supervisor-cxe-860-1265 (environment) · copeland-site-supervisor-rx-860-1220 (environment) · copeland-site-supervisor-rxe-860-1225 (environment) · copeland-site-supervisor-sf-860-1200 (environment)
E3 Supervisory Control· Copeland Lp
90%
0 ≤ v < 2.31F01
Affected range stops below 2.31F01, so it looks safe — our inference, not a vendor statement

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

MitigationThird Party Advisory
Source: dd59f033-460c-4b88-a075-d4d3fedb6191
https://www.armis.com/research/frostbyte10/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-836

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