CVE-2026-20483In Telephony, there is a possible escalation of privilege due to a missing permission check.
Updated under an hour ago ()
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It affects mediatek mt8893_firmware and 34 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 Telephony, there is a possible escalation of privilege due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11087526; Issue ID: MSV-8243.
- CVSS
- 7.7 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- Weakness (CWE)
- CWE-862
- 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
- Aug 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
mediatek mt8893_firmware mediatek:mt8893_firmware | all versions | NVD |
mediatek mt6739_firmware mediatek:mt6739_firmware | all versions | NVD |
mediatek mt6761_firmware mediatek:mt6761_firmware | all versions | NVD |
mediatek mt6765_firmware mediatek:mt6765_firmware | all versions | NVD |
mediatek mt6768_firmware mediatek:mt6768_firmware | all versions | NVD |
mediatek mt6781_firmware mediatek:mt6781_firmware | all versions | NVD |
mediatek mt6789_firmware mediatek:mt6789_firmware | all versions | NVD |
mediatek mt6833_firmware mediatek:mt6833_firmware | all versions | NVD |
mediatek mt6835_firmware mediatek:mt6835_firmware | all versions | NVD |
mediatek mt6853_firmware mediatek:mt6853_firmware | all versions | NVD |
mediatek mt6855_firmware mediatek:mt6855_firmware | all versions | NVD |
mediatek mt6877_firmware mediatek:mt6877_firmware | all versions | NVD |
mediatek mt6878_firmware mediatek:mt6878_firmware | all versions | NVD |
mediatek mt6879_firmware mediatek:mt6879_firmware | all versions | NVD |
mediatek mt6883_firmware mediatek:mt6883_firmware | all versions | NVD |
mediatek mt6885_firmware mediatek:mt6885_firmware | all versions | NVD |
mediatek mt6886_firmware mediatek:mt6886_firmware | all versions | NVD |
mediatek mt6889_firmware mediatek:mt6889_firmware | all versions | NVD |
mediatek mt6893_firmware mediatek:mt6893_firmware | all versions | NVD |
mediatek mt6895_firmware mediatek:mt6895_firmware | all versions | NVD |
mediatek mt6897_firmware mediatek:mt6897_firmware | all versions | NVD |
mediatek mt6983_firmware mediatek:mt6983_firmware | all versions | NVD |
mediatek mt6985_firmware mediatek:mt6985_firmware | all versions | NVD |
mediatek mt6989_firmware mediatek:mt6989_firmware | all versions | NVD |
mediatek mt6991_firmware mediatek:mt6991_firmware | all versions | NVD |
mediatek mt6993_firmware mediatek:mt6993_firmware | all versions | NVD |
mediatek mt8766_firmware mediatek:mt8766_firmware | all versions | NVD |
mediatek mt8766r_firmware mediatek:mt8766r_firmware | all versions | NVD |
mediatek mt8768_firmware mediatek:mt8768_firmware | all versions | NVD |
mediatek mt8775_firmware mediatek:mt8775_firmware | all versions | NVD |
mediatek mt8781_firmware mediatek:mt8781_firmware | all versions | NVD |
mediatek mt8792_firmware mediatek:mt8792_firmware | all versions | NVD |
mediatek mt8796_firmware mediatek:mt8796_firmware | all versions | NVD |
mediatek mt8873_firmware mediatek:mt8873_firmware | all versions | NVD |
mediatek mt8883_firmware mediatek:mt8883_firmware | all versions | NVD |
References
- https://www.mediatek.com/product-security-bulletin/August-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.