Security readout for executives and security teams
Plain-English summary
This vulnerability affects listed NETGEAR M4300 and M4200 fully managed switches running firmware before 12.0.2.15. A lower-privileged local user could potentially gain higher privileges, putting switch configuration, traffic availability, and administrative trust at risk.
Executive priority
Treat this as a high-priority infrastructure hygiene issue. The risk is not broad remote compromise from the cited data, but successful privilege escalation on a core switch could affect network availability and administrative control.
Technical view
CVE-2017-18822 is a vertical privilege escalation issue in specified NETGEAR M4300 and M4200 switch models before firmware 12.0.2.15. The CVSS 3.0 vector is local, low complexity, low privileges required, no user interaction, with high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely in organizations still operating the listed NETGEAR fully managed switches on firmware older than 12.0.2.15. The source bundle does not provide CPEs, CWEs, or detailed vulnerable components.
Exploitation context
The CVSS vector indicates exploitation requires local access and existing low privileges. The source bundle does not state public exploitation, and this CVE is not marked as CISA KEV in the provided data.
Researcher notes
The provided record is sparse: no CWE, no CPEs, and no technical root cause are included. Analysis should stay anchored to model and firmware matching, CVSS local privilege assumptions, and the NETGEAR advisory.
Mitigation direction
- Upgrade affected switches to firmware 12.0.2.15 or later.
- Prioritize devices with shared administrative access or weak account governance.
- Restrict switch access to trusted administrators only.
- Review NETGEAR advisory for model-specific firmware guidance.
- Remove stale or unnecessary low-privilege switch accounts.
Validation and detection
- Inventory NETGEAR M4300 and M4200 switch models.
- Record each switch firmware version from trusted management sources.
- Compare versions against the 12.0.2.15 fixed threshold.
- Confirm no listed device remains below the fixed version.
- Review local user accounts and privilege assignments.
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.
Privilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2017-18822 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
- 7.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AC:L/AV:L/A:H/C:H/I:H/PR:L/S:U/UI:N
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:3.0/AC:L/AV:L/A:H/C:H/I:H/PR:L/S:U/UI:N1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
7.8HighVector: CVSS:3.0/AC:L/AV:L/A:H/C:H/I:H/PR:L/S:U/UI:N
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000049043/Security-Advisory-for-Vertical-Privilege-Escalation-on-Some-Fully-Managed-Switches-PSV-2017-1944CVE reference · x_refsource_CONFIRM
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.