How severe is CVE-2026-20495?

CVE-2026-20495 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-20495 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-2026-20495?

CVE-2026-20495 primarily affects Mediatek Mt7925 Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-20495?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-20495 published?

CVE-2026-20495 was published on 2026-08-03 and last updated on 2026-08-19.

CVE-2026-20495

CVE-2026-20495 is a high-severity vulnerability in Mediatek Mt7925 Firmware with a CVSS 3.x base score of 7.8. 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-862.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Mediatek Mt7925 Firmware
Published: 2026-08-03
Last modified: 2026-08-19

Description

In Bluetooth driver, there is a possible permission bypass due to a missing permission check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00488300; Issue ID: MSV-7296.

Frequently asked questions

What is CVE-2026-20495?: In Bluetooth driver, there is a possible permission bypass due to a missing permission check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00488300; Issue ID: MSV-7296.
How severe is CVE-2026-20495?: CVE-2026-20495 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-20495 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-2026-20495?: CVE-2026-20495 primarily affects Mediatek Mt7925 Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-20495?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-20495 published?: CVE-2026-20495 was published on 2026-08-03 and last updated on 2026-08-19.

References

https://www.mediatek.com/product-security-bulletin/August-2026

Affected products (6)

cpe:2.3:o:mediatek:mt7925_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7927_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7902_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7920_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7921_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt7922_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Mediatek Mt7925 Firmware

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