How severe is CVE-2025-20740?

CVE-2025-20740 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-20740 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-20740?

CVE-2025-20740 affects Mediatek Software Development Kit. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-20740?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-20740 have an EU (EUVD) identifier?

Yes. CVE-2025-20740 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-37563.

When was CVE-2025-20740 published?

CVE-2025-20740 was published on 2025-11-04 and last updated on 2026-06-17.

CVE-2025-20740

CVE-2025-20740 is a medium-severity vulnerability in Mediatek Software Development Kit with a CVSS 3.x base score of 4.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-367.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-37563
Weakness: CWE-367
Affected product: Mediatek Software Development Kit
Published: 2025-11-04
Last modified: 2026-06-17

Description

In wlan STA driver, there is a possible out of bounds read due to a race condition. This could lead to local information disclosure with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00435337; Issue ID: MSV-4036.

Frequently asked questions

What is CVE-2025-20740?: In wlan STA driver, there is a possible out of bounds read due to a race condition. This could lead to local information disclosure with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00435337; Issue ID: MSV-4036.
How severe is CVE-2025-20740?: CVE-2025-20740 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-20740 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-20740?: CVE-2025-20740 affects Mediatek Software Development Kit. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-20740?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-20740 have an EU (EUVD) identifier?: Yes. CVE-2025-20740 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-37563.
When was CVE-2025-20740 published?: CVE-2025-20740 was published on 2025-11-04 and last updated on 2026-06-17.

References

https://corp.mediatek.com/product-security-bulletin/November-2025

Affected products (1)

cpe:2.3:a:mediatek:software_development_kit:*:*:*:*:*:*:*:*

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