Security readout for executives and security teams
Plain-English summary
This vulnerability affects certain NETGEAR R7800 and R9000 routers. An already authenticated user could trigger a stack-based buffer overflow, potentially causing serious confidentiality, integrity, and availability impact. The issue is not listed as known exploited in the provided sources.
Executive priority
Treat this as a focused router hygiene issue, not a broad emergency. Prioritize environments using the named NETGEAR models, especially where administrator access is shared or poorly controlled.
Technical view
CVE-2017-18699 is a post-authentication stack-based buffer overflow in NETGEAR R7800 firmware before 1.0.2.40 and R9000 firmware before 1.0.2.52. CVSS 3.0 is 6.8 with adjacent-network access, low complexity, high privileges required, no user interaction, and high CIA impact.
Likely exposure
Exposure is most likely where affected NETGEAR R7800 or R9000 routers remain on vulnerable firmware and management access is reachable by authenticated local or adjacent-network users.
Exploitation context
The provided evidence supports post-authentication exploitation only. It does not support unauthenticated internet exploitation or active exploitation in the wild; KEV status is false in the bundle.
Researcher notes
The affected product metadata in the bundle is sparse, but the description names R7800 and R9000 version thresholds. No CWE is assigned. Do not assume other NETGEAR models are affected without vendor evidence.
Mitigation direction
- Upgrade R7800 firmware to 1.0.2.40 or later.
- Upgrade R9000 firmware to 1.0.2.52 or later.
- Review the NETGEAR advisory for model-specific guidance.
- Limit router administration to trusted users and networks.
- Replace devices that cannot run fixed firmware.
Validation and detection
- Inventory NETGEAR R7800 and R9000 devices.
- Record current firmware versions for each device.
- Confirm R7800 devices are not below 1.0.2.40.
- Confirm R9000 devices are not below 1.0.2.52.
- Check administrative access is restricted to authorized users.
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.
CVE-2017-18699 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
- Medium
- CVSS
- 6.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:H/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:A/A:H/C:H/I:H/PR:H/S:U/UI:N0.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.8MediumVector: CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:H/S:U/UI:N
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000053203/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-PSV-2017-2595CVE 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.