Security readout for executives and security teams
Plain-English summary
Some NETGEAR router models contain a buffer overflow that could allow a nearby or local attacker to seriously compromise device security. The issue is high severity because successful exploitation could affect confidentiality, integrity, and availability. The provided sources do not show active exploitation.
Executive priority
Treat this as a high-priority legacy network equipment cleanup item. It is not currently evidenced as actively exploited, but vulnerable routers can become durable footholds and are often overlooked in asset management.
Technical view
CVE-2017-18779 is a buffer overflow affecting specified NETGEAR devices before listed firmware versions. CVSS 3.0 is 8.4 with low complexity, no privileges, no user interaction, local attack vector, unchanged scope, and high CIA impact. No CWE mapping is provided in the bundle.
Likely exposure
Exposure is limited to the NETGEAR models and pre-fix firmware versions named in the CVE description. Organizations are most likely exposed through legacy branch, home-office, lab, or unmanaged network equipment that missed firmware updates.
Exploitation context
The bundle does not cite KEV inclusion, active exploitation, public exploit use, or exploitation in the wild. Risk remains material because the CVSS vector indicates low complexity and no required privileges or user interaction, with high impact if the local attack condition is met.
Researcher notes
The source bundle is sparse: it names affected models, firmware thresholds, CVSS, and the NETGEAR advisory reference, but provides no root-cause details, affected code path, exploit preconditions beyond AV:L, or vendor workaround text.
Mitigation direction
- Inventory NETGEAR devices against the affected model list.
- Upgrade affected devices to the vendor’s fixed firmware versions or later.
- Check the NETGEAR advisory for model-specific guidance before changes.
- Retire unsupported devices if fixed firmware is unavailable.
- Limit access to device management and local network surfaces.
Validation and detection
- Confirm each device model and current firmware version.
- Compare firmware against the fixed version thresholds in the CVE description.
- Review whether affected devices are still deployed in business networks.
- Verify firmware upgrade completion after remediation.
- Document exceptions and compensating controls for devices not 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.
CVE-2017-18779 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/000049541/Security-Advisory-for-Buffer-Overflow-on-Some-Routers-PSV-2017-2956CVE 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.