Security readout for executives and security teams
Plain-English summary
CVE-2017-18852 affects several NETGEAR router models. The reported issue combines CSRF and authentication bypass, which could let an attacker bypass intended router protections. Business urgency is highest where listed models remain on old firmware, especially in remote offices, home offices, or unmanaged network edges.
Executive priority
Treat this as a high-priority legacy network-edge cleanup item. It is not KEV-confirmed active exploitation, but affected routers can sit outside normal endpoint controls and may expose sensitive traffic or business connectivity if neglected.
Technical view
The CVE covers R7300DST before 1.0.0.54, R8300 and R8500 before 1.0.2.100_1.0.82, and WNDR3400v3 before 1.0.1.14. CVSS 3.0 is 8.4 high, with high confidentiality, integrity, and availability impact. The public bundle does not provide implementation details.
Likely exposure
Exposure is limited to the named NETGEAR models running firmware older than the listed fixed versions. Risk is more likely in legacy small-office, branch, lab, or home-office environments where consumer routers are not centrally managed.
Exploitation context
The provided sources do not state active exploitation, and the CVE is not marked KEV. The CVSS vector reports low complexity and no privileges required, but also lists local attack vector. Public evidence is too limited to infer exploit prevalence.
Researcher notes
The source bundle identifies affected products and fixed-version thresholds but lacks detailed root-cause, attack-path, or exploit telemetry. Do not generalize this CVE to other NETGEAR models without additional vendor evidence.
Mitigation direction
- Inventory NETGEAR R7300DST, R8300, R8500, and WNDR3400v3 devices.
- Update affected routers to the fixed firmware versions named by NETGEAR.
- Check NETGEAR guidance for model-specific firmware and upgrade instructions.
- Retire unsupported or unmanaged devices that cannot be verified or updated.
- Restrict administrative access to trusted networks where operationally possible.
Validation and detection
- Confirm each router model and exact firmware version from device administration records.
- Compare versions against the fixed versions listed in the advisory.
- Verify updated devices remain on supported firmware after reboot.
- Review asset inventories for unmanaged branch or home-office NETGEAR devices.
- Document exceptions where devices cannot be accessed or upgraded.
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-2017-18852 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
- 8.4 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AC:L/AV:L/A:H/C:H/I:H/PR:N/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:N/S:U/UI:N2.55.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8.4HighVector: CVSS:3.0/AC:L/AV:L/A:H/C:H/I:H/PR:N/S:U/UI:N
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000045849/Security-Advisory-for-CSRF-and-Authentication-Bypass-on-Some-Routers-PSV-2017-1206CVE 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.