VulnerabilityAnalyzed
CVE-2026-20449
In Modem, there is a possible system crash due to a heap buffer overflow.
MEDIUM 6.5EPSS 0.22%
Does this matter?
Lower severity and a low EPSS score (0.22%). Track it; it rarely justifies an emergency change on its own.
Description
In Modem, there is a possible system crash due to a heap buffer overflow. 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: MOLY01760138; Issue ID: MSV-6148.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.22% probability · 13th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-120
- Affected
- mediatek/mt6763 firmware · mediatek/mt6765 firmware · mediatek/mt6767 firmware · mediatek/mt6768 firmware · mediatek/mt6769 firmware · mediatek/mt6771 firmware · mediatek/mt6779 firmware · mediatek/mt6781 firmware · mediatek/mt6783 firmware · mediatek/mt6785 firmware · mediatek/mt6789 firmware · mediatek/mt6813 firmware · mediatek/mt6815 firmware · mediatek/mt6833 firmware · mediatek/mt6835 firmware · mediatek/mt6853 firmware · mediatek/mt6855 firmware · mediatek/mt6858 firmware · mediatek/mt6873 firmware · mediatek/mt6875 firmware · +40 more
- Source
- security@mediatek.com
References
- https://corp.mediatek.com/product-security-bulletin/May-2026Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.