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CVE-2025-20673

17
FAUCET Score

CVE-2025-20673 is a medium-severity vulnerability affecting MediaTek's WLAN STA driver across multiple mt79xx series chipsets, where an uncaught exception can lead to a system crash. This local denial-of-service vulnerability requires user execution privileges but no user interaction for exploitation. While the CVSS score is 5.5, indicating a moderate risk, there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.6CPE matchmatch criteria
cpe:2.3:o:mediatek:mt7902_firmware:*:*:*:*:*:*:*:*
<= 3.6CPE matchmatch criteria
cpe:2.3:o:mediatek:mt7921_firmware:*:*:*:*:*:*:*:*
<= 3.6CPE matchmatch criteria
cpe:2.3:o:mediatek:mt7922_firmware:*:*:*:*:*:*:*:*
<= 3.6CPE matchmatch criteria
cpe:2.3:o:mediatek:mt7925_firmware:*:*:*:*:*:*:*:*
<= 3.6CPE matchmatch criteria
cpe:2.3:o:mediatek:mt7927_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.14%
Probability of exploitation in next 30 days
EPSS Percentile
4.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0014 is in the 26th percentile among its peer group of 15,938 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 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/June-2025
Vendor Advisory