CVE-2026-20509

MEDIUMCVSS 6.7/10EPSS 0.12%

Last modified

CVE-2026-20509 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. In Power HAL, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. EPSS estimates a 0.12% chance of exploitation in the next 30 days.

Description

In Power HAL, there is a possible out of bounds write due to a missing bounds check. 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: ALPS11165543; Issue ID: MSV-9011.

Metrics

EPSS Probability
0.12%

1.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
MediaTek, Inc.MediaTek chipsetMT2718; MT6739; MT6761; MT6765; MT6768; MT6769; MT6781; MT6789; MT6833; MT6835; MT6853; MT6855; MT6858; MT6877; MT6878; MT6879; MT6881; MT6883; MT6885; MT6886; MT6889; MT6893; MT6895; MT6897; MT6899; MT6983; MT6985; MT6989; MT6991; MT6993; MT8171; MT8186; MT8188; MT8189; MT8196; MT8668; MT8676; MT8678; MT8696; MT8793

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2026-20509?
In Power HAL, there is a possible out of bounds write due to a missing bounds check. 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: ALPS11165543; Issue ID: MSV-9011.
How severe is CVE-2026-20509?
CVE-2026-20509 has a CVSS score of 6.7/10 (MEDIUM severity). The EPSS model estimates a 0.12% probability of exploitation in the next 30 days.
How do I fix CVE-2026-20509?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

Related CVEs from 2026

Are you affected by CVE-2026-20509?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST