CVE-2026-20503
In Modem, there is a possible system crash due to a missing bounds check.
Does this matter?
Lower severity and a low EPSS score (0.29%). Track it; it rarely justifies an emergency change on its own.
Description
In Modem, there is a possible system crash due to a missing bounds check. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01371002; Issue ID: MSV-9020.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.29% probability · 21th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-617
- Affected
- mediatek/mt2716 firmware · mediatek/mt2735 firmware · mediatek/mt2737 firmware · mediatek/mt6813 firmware · mediatek/mt6833 firmware · mediatek/mt6835 firmware · mediatek/mt6853 firmware · mediatek/mt6855 firmware · mediatek/mt6858 firmware · mediatek/mt6873 firmware · mediatek/mt6875 firmware · mediatek/mt6877 firmware · mediatek/mt6878 firmware · mediatek/mt6879 firmware · mediatek/mt6880 firmware · mediatek/mt6881 firmware · mediatek/mt6883 firmware · mediatek/mt6885 firmware · mediatek/mt6886 firmware · mediatek/mt6889 firmware · +37 more
- Source
- security@mediatek.com
EPSS 0.3% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.