How severe is CVE-2026-20463?

CVE-2026-20463 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-20463 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-20463?

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

When was CVE-2026-20463 published?

CVE-2026-20463 was published on 2026-07-01 and last updated on 2026-07-02.

CVE-2026-20463

CVE-2026-20463 is a medium-severity vulnerability with a CVSS 3.x base score of 6.7. 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-280.

Key facts

Severity: Medium (CVSS 3.x base score 6.7)
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-280
Published: 2026-07-01
Last modified: 2026-07-02

Description

In Modem, there is a possible escalation of privilege due to a permissions bypass. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: MOLY01716533; Issue ID: MSV-6309.

Frequently asked questions

What is CVE-2026-20463?: In Modem, there is a possible escalation of privilege due to a permissions bypass. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: MOLY01716533; Issue ID: MSV-6309.
How severe is CVE-2026-20463?: CVE-2026-20463 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-20463 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-20463?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-20463 published?: CVE-2026-20463 was published on 2026-07-01 and last updated on 2026-07-02.

References

https://corp.mediatek.com/product-security-bulletin/July-2026

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