CVE-2023-0452: Econolite EOS versions prior to 3.2.23 use a weak hash algorithm for encrypting privileged user credentials

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CRITICAL 9.8REMOTEMITIGATE

CVE-2023-0452 is a critical-severity flaw (CVSS 9.8) affecting eos. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Econolite EOS versions prior to 3.2.23 use a weak hash algorithm for encrypting privileged user credentials. A configuration file that is accessible without authentication uses MD5 hashes for encrypting credentials, including those of administrators and technicians.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 55%)
CISA exploited list	No
Weakness	CWE-328, CWE-327
Published	2023-01-26
Last modified	2026-06-17

Publisher (CNA): ICS-CERT · Vendor: econolite

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-01-26 21:18 UTCPublished CVE record published
2026-06-17 05:25 UTCUpdated Record last modified

econolite eos MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy eos || rpm -q eos || eos --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-0452?

eos: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-0452 being exploited?

CVE-2023-0452 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-0452 affect?

CVE-2023-0452 affects eos. Severity is critical (CVSS 9.8). Econolite EOS versions prior to 3.2.23 use a weak hash algorithm for encrypting privileged user credentials. A configuration file that is accessible without authentication uses MD5 hashes for encrypting credentials, including those of admin

How urgent is CVE-2023-0452?

Priority 51/100. Critical severity; Remotely exploitable, no login, no user action

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References

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