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PatchSiren cyber security CVE debrief

CVE-2025-20807 MediaTek, Inc. CVE debrief

CVE-2025-20807 is a possible out of bounds write due to an integer overflow in dpe, which could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. This vulnerability affects system administrators and security teams who need to assess exposure and apply patches if available to prevent potential system compromise. The vulnerability has a CVSS score of 6.7 and a medium severity level. The CVE record was published on 2026-01-06T02:15:44.970Z.

Vendor
MediaTek, Inc.
Product
MediaTek chipset
CVSS
MEDIUM 6.7
CISA KEV
Not listed in stored evidence
Original CVE published
2026-01-06
Original CVE updated
2026-09-30
Advisory published
2026-01-06
Advisory updated
2026-09-30

Who should care

System administrators and security teams should assess exposure and apply patches if available to prevent potential system compromise. The vulnerability affects system administrators and security teams who need to assess exposure and apply patches if available. The vulnerability has a CVSS score of 6.7 and a medium severity level.

Why it matters

CVE-2025-20807 is a possible out of bounds write due to an integer overflow in dpe, which could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. System administrators and security teams should assess exposure and apply patches if available.

  • Local escalation of privilege could allow an attacker to gain elevated access
  • System compromise could occur if a malicious actor has already obtained the System privilege

Technical summary

A possible out of bounds write due to an integer overflow in dpe could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. The vulnerability has a CVSS score of 6.7 and a medium severity level. The CVE record and NVD vulnerability detail page provide additional information on the vulnerability, but do not provide specific details on affected versions or remediation steps. System administrators and security teams should assess exposure and apply patches if available to prevent potential system compromise.

Defensive priority

Assess exposure and apply patch if available

Recommended defensive actions

  • Assess exposure to the vulnerable component
  • Apply patch if available
  • Monitor system for suspicious activity
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD vulnerability detail page provide information on the vulnerability, but do not specify which versions are affected or provide remediation steps. The CVE record was published on 2026-01-06T02:15:44.970Z and has not been modified since then. The NVD vulnerability detail page provides additional information on the vulnerability, but does not provide specific details on affected versions or remediation steps.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-20807 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-20807

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2025-20807 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-20807

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.