CVE-2026-20452In wlan AP driver, there is a possible memory corruption due to a heap buffer overflow.
Updated under an hour ago ()
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It affects mediatek mt6890_firmware and 8 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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In wlan AP driver, there is a possible memory corruption due to a heap buffer overflow. This could lead to remote (proximal/adjacent) code execution with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00480138; Issue ID: MSV-6295.
- CVSS
- 8.0 HIGH (v3.1, NVD)CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-122
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jul 22, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
mediatek mt6890_firmware mediatek:mt6890_firmware | all versions | NVD |
mediatek mt7615_firmware mediatek:mt7615_firmware | all versions | NVD |
mediatek mt7915_firmware mediatek:mt7915_firmware | all versions | NVD |
mediatek mt7916_firmware mediatek:mt7916_firmware | all versions | NVD |
mediatek mt7981_firmware mediatek:mt7981_firmware | all versions | NVD |
mediatek mt7986_firmware mediatek:mt7986_firmware | all versions | NVD |
mediatek mt7990_firmware mediatek:mt7990_firmware | all versions | NVD |
mediatek mt7992_firmware mediatek:mt7992_firmware | all versions | NVD |
mediatek mt7993_firmware mediatek:mt7993_firmware | all versions | NVD |
References
- https://corp.mediatek.com/product-security-bulletin/June-2026vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.