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CVE-2025-20633

27
FAUCET Score

CVE-2025-20633 is an out-of-bounds write vulnerability in MediaTek's WLAN AP driver, affecting multiple MediaTek chipsets and SDKs. This flaw allows for remote (adjacent) code execution without user interaction or additional privileges, posing a significant risk. With a CVSS score of 8.8 (High), the vulnerability is easily exploitable over the network with low attack complexity, potentially leading to complete compromise of confidentiality, integrity, and availability. Currently, there is no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 7.4.0.1CPE matchmatch criteria
cpe:2.3:a:mediatek:software_development_kit:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.33%
Probability of exploitation in next 30 days
EPSS Percentile
25.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0033 is in the 23rd percentile among its peer group of 1,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (7)

capnprotovendor investigatingvia llm_extracted
View patch
ciscovendor investigatingvia llm_extracted
View patch
hedgedocvendor investigatingvia llm_extracted
View patch
hpvendor investigatingvia llm_extracted
View patch
jenkinsvendor investigatingvia llm_extracted
View patch
lycheeorgvendor investigatingvia llm_extracted
View patch
yokogawavendor investigatingvia llm_extracted
View patch

Vendor Advisories (7)

yokogawallm-yokogawa-976766f9182c6da7

WLAN Driver Vulnerabilities (CVE-2025-20631 ~ CVE-2025-20633)

Apr 7, 2025
lycheeorgllm-lycheeorg-41216875d6167fee

WLAN Driver Vulnerabilities (CVE-2025-20631 ~ CVE-2025-20633)

Apr 7, 2025
jenkinsllm-jenkins-12843560ababd45c

WLAN Driver Vulnerabilities (CVE-2025-20631 ~ CVE-2025-20633)

Apr 7, 2025
hpllm-hp-d4d6607083eff7fa

WLAN Driver Vulnerabilities (CVE-2025-20631 ~ CVE-2025-20633)

Apr 7, 2025
hedgedocllm-hedgedoc-1343e2231156a70e

WLAN Driver Vulnerabilities (CVE-2025-20631 ~ CVE-2025-20633)

Apr 7, 2025
capnprotollm-capnproto-5ef60a654b4d4522

WLAN Driver Vulnerabilities (CVE-2025-20631 ~ CVE-2025-20633)

Apr 7, 2025
ciscollm-cisco-1deb86905da94a46

WLAN Driver Vulnerabilities (CVE-2025-20631 ~ CVE-2025-20633)

Apr 7, 2025

References

corp.mediatek.com / product-security-bulletin/February-2025
Vendor Advisory