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CVE-2021-41788

25
FAUCET Score

CVE-2021-41788 describes a denial-of-service vulnerability in MediaTek Wi-Fi chipsets, including those found in NETGEAR devices, due to improper handling of Wi-Fi authentication flooding. Rated 7.5 HIGH on CVSS, this vulnerability can be exploited remotely with low complexity, requiring no user interaction or privileges, leading to a complete loss of availability for affected devices. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
7.4.0.0CPE matchmatch criteria
cpe:2.3:o:mediatek:mt7603e_firmware:7.4.0.0:*:*:*:*:*:*:*
7.4.0.0CPE matchmatch criteria
cpe:2.3:o:mediatek:mt7612_firmware:7.4.0.0:*:*:*:*:*:*:*
7.4.0.0CPE matchmatch criteria
cpe:2.3:o:mediatek:mt7613_firmware:7.4.0.0:*:*:*:*:*:*:*
7.4.0.0CPE matchmatch criteria
cpe:2.3:o:mediatek:mt7615_firmware:7.4.0.0:*:*:*:*:*:*:*
7.4.0.0CPE matchmatch criteria
cpe:2.3:o:mediatek:mt7622_firmware:7.4.0.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:L

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
2.2
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.76%
Probability of exploitation in next 30 days
EPSS Percentile
75.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0176 is in the 58th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

corp.mediatek.com / product-security-bulletin/January-2022
Vendor Advisory
kb.netgear.com / 000064369/Security-Advisory-for-WiFi-Authentication-Flooding-Vulnerabilities-on-Multiple-Products-PSV-2021-0299-PSV-2021-0301
Third Party Advisory