Security readout for executives and security teams
Plain-English summary
CVE-2017-18853 is a critical NETGEAR router issue involving password recovery and file access. The listed devices may allow an unauthenticated attacker on an adjacent network to compromise confidentiality, integrity, and availability. There is no provided evidence of active exploitation or CISA KEV listing.
Executive priority
Treat this as urgent for environments still using the listed NETGEAR devices. The issue is critical, requires no credentials, and could affect core network infrastructure, but urgency depends on whether affected firmware remains in use.
Technical view
The CVSS 3.0 vector is 9.6 critical: AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H. The source lists multiple NETGEAR router and modem-router firmware versions as affected. The bundle does not provide CWE classification, exploit details, or fixed firmware versions.
Likely exposure
Exposure is most likely where affected NETGEAR models are still deployed with firmware at or below the listed versions, especially on networks where untrusted users can reach the device management surface.
Exploitation context
The provided CVSS vector indicates adjacent-network attackability, low complexity, no privileges, and no user interaction. The source bundle does not support claims of internet-scale exploitation, public exploit availability, or active exploitation.
Researcher notes
Evidence is limited to CVE metadata and the NETGEAR advisory reference. The affected list is detailed, but the bundle lacks CWE, patch versions, proof-of-concept status, and mitigation specifics. Do not assume active exploitation without additional cited evidence.
Mitigation direction
- Inventory the listed NETGEAR models and firmware versions.
- Review the NETGEAR advisory for fixed firmware or vendor mitigations.
- Prioritize replacement where vendor-supported updates are unavailable.
- Limit management access to trusted administrative networks only.
- Monitor vendor guidance for model-specific remediation details.
Validation and detection
- Compare device model and firmware against the affected version list.
- Confirm whether each device has a vendor-supported fixed firmware path.
- Check network access paths to router management interfaces.
- Record exceptions for unsupported or unavailable devices.
- Track remediation status by site, model, and firmware.
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.
Credential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2017-18853 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
- Critical
- CVSS
- 9.6 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:N/S:C/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:A/A:H/C:H/I:H/PR:N/S:C/UI:N2.86Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
9.6CriticalVector: CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:N/S:C/UI:N
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000045848/Security-Advisory-for-Password-Recovery-and-File-Access-on-Some-Routers-and-Modem-Routers-PSV-2017-0677CVE 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.