Security readout for executives and security teams
Plain-English summary
This CVE affects Extreme Networks EXOS Web GUI access control. A logged-in attacker may reach restricted URLs, potentially exposing sensitive information or escalating privileges. The business concern is compromise of network switch management, which can affect confidentiality, configuration integrity, and service availability.
Executive priority
Treat this as a high-priority network infrastructure issue. It may allow privileged management compromise from a lower-privileged account, but evidence of active exploitation is not provided in the source bundle.
Technical view
The source describes an EXOS Web GUI authorization issue in versions before v22.7 and before v30.2. CVSS 3.1 is 8.0 with network access, low complexity, low privileges, user interaction required, and high confidentiality, integrity, and availability impact. CWE is listed as CWE-287.
Likely exposure
Organizations using Extreme Networks EXOS management Web GUI on versions before v22.7 or before v30.2 may be exposed. Exposure is higher where the Web GUI is reachable from broad internal networks, VPN user networks, or the internet.
Exploitation context
The provided bundle does not show CISA KEV listing or confirmed active exploitation. A public gist is referenced, but the bundle does not provide enough detail to claim exploitation in the wild.
Researcher notes
Evidence is sparse: no CPEs are listed in the bundle, and the affected field is n/a despite the EXOS description. Validate against vendor advisories before final scoping. Do not assume other Extreme Networks products are affected.
Mitigation direction
- Identify EXOS devices and versions across all management networks.
- Prioritize upgrade planning for versions before v22.7 or before v30.2.
- Confirm exact fixed release guidance with Extreme Networks.
- Restrict Web GUI access to trusted administration networks only.
- Review admin accounts and remove unnecessary low-privilege access.
- Monitor Web GUI logs for unusual restricted-page access.
Validation and detection
- Inventory EXOS Web GUI endpoints and current firmware versions.
- Confirm whether any device runs versions before v22.7 or before v30.2.
- Verify management interfaces are not internet-accessible.
- Check whether non-admin accounts can reach sensitive management views.
- After remediation, recheck version and management-plane access controls.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-287: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2020-18305 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H2.15.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://gist.github.com/yasinyilmaz/1fe3fe58dd275edb77dcbe890fce2f2cCVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Authentication
Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.