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CVE-2020-18305

Extremenetworks Extremexos authentication bypass

8.0 HIGHPublic exploitEPSS 0.70%
  1. Published14 May 2024

Description

Extreme Networks EXOS before v.22.7 and before v.30.2 was discovered to contain an issue in its Web GUI which fails to restrict URL access, allowing attackers to access sensitive information or escalate privileges.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Affected products

Extremenetworks Extremexos< 22.7 · 30.1

Remediation

Fixed in
Extremenetworks Extremexos≥ 22.7

References

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Frequently asked

Is CVE-2020-18305 being actively exploited?

CVE-2020-18305 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.70%.

How severe is CVE-2020-18305?

CVE-2020-18305 has a CVSS 3.1 base score of 8.0, rated high. EPSS estimates a 0.70% probability of exploitation.

Which products are affected by CVE-2020-18305?

Affected products include Extremenetworks Extremexos.

How do I fix CVE-2020-18305?

Upgrade affected software to a fixed version, for example Extremenetworks Extremexos 22.7 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2020-18305 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.