CVE-2026-20483
In Telephony, there is a possible escalation of privilege due to a missing permission check. This...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2026-20483- CVSS 3.1
- 7.7 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-862
- Updated
- 2026-11-02
EUVDEUVD-2026-52073
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.
- Record
EUVD-2026-52073- CVSS 3.1
- 7.7 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-gp8p-m3ww-5f47
In Telephony, there is a possible escalation of privilege due to a missing permission check. This...
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.
- Record
GHSA-gp8p-m3ww-5f47- CVSS 3.1
- 7.7 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-862
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-20483- CVSS 3.1
- 7.7 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-862
- Updated
- 2026-11-02
Affected products
- mediatek mt6739 firmware
- mediatek mt6761 firmware
- mediatek mt6765 firmware
- mediatek mt6768 firmware
- mediatek mt6781 firmware
- mediatek mt6789 firmware
- mediatek mt6833 firmware
- mediatek mt6835 firmware
- mediatek mt6853 firmware
- mediatek mt6855 firmware
- mediatek mt6877 firmware
- mediatek mt6878 firmware
Show 24 moreShow less
- mediatek mt6879 firmware
- mediatek mt6883 firmware
- mediatek mt6885 firmware
- mediatek mt6886 firmware
- mediatek mt6889 firmware
- mediatek mt6893 firmware
- mediatek mt6895 firmware
- mediatek mt6897 firmware
- mediatek mt6983 firmware
- mediatek mt6985 firmware
- mediatek mt6989 firmware
- mediatek mt6991 firmware
- mediatek mt6993 firmware
- mediatek mt8766 firmware
- mediatek mt8766r firmware
- mediatek mt8768 firmware
- mediatek mt8775 firmware
- mediatek mt8781 firmware
- mediatek mt8792 firmware
- mediatek mt8796 firmware
- mediatek mt8873 firmware
- mediatek mt8883 firmware
- mediatek mt8893 firmware
- mediatek, inc. mediatek chipset
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-20483 is a high vulnerability (CVSS 7.7) in Mediatek Mt6739 Firmware, published August 3, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.17%, the 6th percentile. No source names a fixed version.