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Vulnerabilities

Security fix · CVE-2026-20579

In vdec, there is a possible out of bounds write due to type confusion.

Published Oct 5, 2026 · catalog updated Oct 21, 2026 · mt2718 firmware

Open the advisory

Exploitation likelihood is not on this record for CVE-2026-20579. A missing EPSS score is not a low risk. Compare mt2718 firmware with the linked advisory before you change production.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
  • EPSS is missing. A missing score is not a low risk.
Severity
Medium6.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
Awaiting synchronization with FIRST
Remediation
Advisory link
Affected products
cpe mediatek/mt2718 firmware · cpe mediatek/mt6768 firmware · cpe mediatek/mt6769 firmware · cpe mediatek/mt6789 firmware · cpe mediatek/mt6833 firmware · cpe mediatek/mt6855 firmware

In vdec, there is a possible out of bounds write due to type confusion. 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: ALPS11383899; Issue ID: MSV-9800.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe mediatek/mt2718 firmwareversion unspecified
  • cpe mediatek/mt6768 firmwareversion unspecified
  • cpe mediatek/mt6769 firmwareversion unspecified
  • cpe mediatek/mt6789 firmwareversion unspecified
  • cpe mediatek/mt6833 firmwareversion unspecified
  • cpe mediatek/mt6855 firmwareversion unspecified
  • cpe mediatek/mt6877 firmwareversion unspecified
  • cpe mediatek/mt8186 firmwareversion unspecified

How to fix CVE-2026-20579

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

Exploitation likelihood is not on this record for CVE-2026-20579. A missing EPSS score is not a low risk. Compare mt2718 firmware with the linked advisory before you change production.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-787: Out-of-bounds Write. EPSS is not on this record yet. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 5, 2026 · NIST NVD

    Detected

    In vdec, there is a possible out of bounds write due to type confusion. 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: ALPS11383899; Issue ID: MSV-9800.

  2. Oct 21, 2026 · NIST NVD

    Updated

    In vdec, there is a possible out of bounds write due to type confusion. 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: ALPS11383899; Issue ID: MSV-9800.

Sources

  • CVE.orgVulnerability recordCVE-2026-20579

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-20579

    In vdec, there is a possible out of bounds write due to type confusion. 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: ALPS11383899; Issue ID: MSV-9800.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 21, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.