CVE-2025-20674Network attack vector

Remote privilege escalation via unchecked packet injection

Published Jun 2, 2025 · Updated Feb 26, 2026

Incorrect authorization in MediaTek WLAN AP drivers allows remote attackers to elevate privileges by injecting arbitrary packets. The driver accepts attacker-supplied packets without the permission check needed to restrict packet injection. No prior execution privileges or user interaction is required; the issue affects specified chipsets running SDK release 7.6.7.2 and earlier or the listed OpenWrt builds.

CVSS severity9.8
Critical
EPSS probability0.77%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in MediaTek WLAN AP drivers allows remote attackers to elevate privileges by injecting arbitrary packets. The driver accepts attacker-supplied packets without the permission check needed to restrict packet injection. No prior execution privileges or user interaction is required; the issue affects specified chipsets running SDK release 7.6.7.2 and earlier or the listed OpenWrt builds.

The record

CVE
CVE-2025-20674
Published
Jun 2, 2025
Updated
Feb 26, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-863, T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 2, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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