CVE-2025-52543

Q: How do I fix CVE-2025-52543?

Upgrade e3 supervisory controller firmware to 2.31f01 or later.

Q: Is CVE-2025-52543 being actively exploited?

Not that we know of. CVE-2025-52543 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.30% is the estimated probability that it will be exploited in the next 30 days. That is higher than 22% of all scored CVEs.

Q: How severe is CVE-2025-52543?

CVE-2025-52543 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2025-52543 affect?

Published advisories record a fix for e3 supervisory controller firmware (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

HIGH

7.5

CVSS v3

NVD

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.

CWE-836

How to fix

Remediation Available

e3 supervisory controller firmwareNVD

Affected:< 2.31f01Fixed in:2.31f01CVE-2025-52543derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.30%probability of exploitation in 30 days

22ndpercentile

Low risk: more likely to be exploited than 22% of all known CVEs.

References

Mitigation1

armis.com

Related Vulnerabilities

Other CWE-836 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-7927	High	7.3	37%	-	-
CVE-2023-34132	Critical	9.8	7.7%	-	Fix
CVE-2022-32282	High	8.8	1.6%	-	-
CVE-2021-23857	Critical	10.0	1.2%	-	-
CVE-2023-23614	High	8.8	1.0%	-	Fix
CVE-2023-23450	Medium	6.2	0.7%	-	Fix

Common questions

How do I fix CVE-2025-52543?

Upgrade e3 supervisory controller firmware to 2.31f01 or later.

Is CVE-2025-52543 being actively exploited?

Not that we know of. CVE-2025-52543 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.30% is the estimated probability that it will be exploited in the next 30 days. That is higher than 22% of all scored CVEs.

How severe is CVE-2025-52543?

CVE-2025-52543 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2025-52543 affect?

Published advisories record a fix for e3 supervisory controller firmware (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-01.