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CVE-2025-20692VulnerabilityPublished

CVE-2025-20692: MediaTek MT6890, MT7615, MT7622, MT7663, MT7915, MT7916, MT7981, MT7986 · Out-of-bounds Read

Affects MediaTek MT6890, MT7615, MT7622, MT7663, MT7915, MT7916, MT7981, MT7986Source CVE Database V5

0

Not known to be exploited · CVSS 5.5 Medium : upgrade to 19.07 when convenient.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 8% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 19.07
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 8 Jul 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

What to do

Upgrade MediaTek MT6890, MT7615, MT7622, MT7663, MT7915, MT7916, MT7981, MT7986 to 19.07.

Affected software

ProductAffectedFixed in
MediaTek, Inc. MT6890, MT7615, MT7622, MT7663, MT7915, MT7916, MT7981, MT7986Affected
  • <19.07
  • =21.02
Fixed in
  • 19.07

AI-suggested

To mitigate this vulnerability, European organizations should: 1) Identify all devices using the affected MediaTek chipsets and verify their firmware or SDK versions, prioritizing those running SDK release 7.6.7.2 or earlier and OpenWRT 19.07 or 21.02. 3) If patches are not yet available, consider isolating or segmenting vulnerable devices from sensitive network segments to limit potential exposure. 4) Implement strict access controls to prevent unprivileged users from executing code on affected devices, including hardening device management interfaces and disabling unnecessary services. 5) Monitor logs and network traffic for unusual local access attempts or memory disclosure indicators. 6) For organizations using OpenWRT, upgrade to versions beyond 21.02 that incorporate fixes or apply community patches addressing this issue. 7) Conduct regular security audits and penetration tests focusing on wireless infrastructure to detect exploitation attempts. These steps go beyond generic advice by emphasizing inventory management, segmentation, and proactive monitoring tailored to the specific vulnerability context.

Description

In wlan AP driver, there is a possible out of bounds read due to an incorrect bounds check. This could lead to local information disclosure with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00418040; Issue ID: MSV-3476.

References

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