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CVE-2018-21097

28
FAUCET Score

CVE-2018-21097 describes a critical stack-based buffer overflow vulnerability affecting various NETGEAR wireless access points and routers, including models like WAC505, WAC510, and WNDAP360, across specific firmware versions. This flaw allows an unauthenticated attacker to achieve remote code execution with high impact on confidentiality, integrity, and availability, as indicated by its CVSS score of 9.8 (Critical) and low attack complexity. Despite its severity, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.0.5.4CPE matchmatch criteria
cpe:2.3:o:netgear:wac505_firmware:*:*:*:*:*:*:*:*
< 5.0.5.4CPE matchmatch criteria
cpe:2.3:o:netgear:wac510_firmware:*:*:*:*:*:*:*:*
< 2.1.7CPE matchmatch criteria
cpe:2.3:o:netgear:wac120_firmware:*:*:*:*:*:*:*:*
< 3.3.10CPE matchmatch criteria
cpe:2.3:o:netgear:wn604_firmware:*:*:*:*:*:*:*:*
< 3.7.11.4CPE matchmatch criteria
cpe:2.3:o:netgear:wnap320_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.1HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
4.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.16%
Probability of exploitation in next 30 days
EPSS Percentile
63.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0116 is in the 50th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

kb.netgear.com / 000060457/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Wireless-Access-Points-PSV-2018-0094
Vendor Advisory