CVE-2026-20449
Last modified
CVE-2026-20449 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.22% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mediatek | Mt6763 Firmware | All versions |
| Mediatek | Mt6765 Firmware | All versions |
| Mediatek | Mt6767 Firmware | All versions |
| Mediatek | Mt6768 Firmware | All versions |
| Mediatek | Mt6769 Firmware | All versions |
| Mediatek | Mt6771 Firmware | All versions |
| Mediatek | Mt6779 Firmware | All versions |
| Mediatek | Mt6781 Firmware | All versions |
| Mediatek | Mt6783 Firmware | All versions |
| Mediatek | Mt6785 Firmware | All versions |
| Mediatek | Mt6789 Firmware | All versions |
| Mediatek | Mt6813 Firmware | All versions |
| Mediatek | Mt6815 Firmware | All versions |
| Mediatek | Mt6833 Firmware | All versions |
| Mediatek | Mt6835 Firmware | All versions |
| Mediatek | Mt6853 Firmware | All versions |
| Mediatek | Mt6855 Firmware | All versions |
| Mediatek | Mt6858 Firmware | All versions |
| Mediatek | Mt6873 Firmware | All versions |
| Mediatek | Mt6875 Firmware | All versions |
| Mediatek | Mt6877 Firmware | All versions |
| Mediatek | Mt6878 Firmware | All versions |
| Mediatek | Mt6879 Firmware | All versions |
| Mediatek | Mt6880 Firmware | All versions |
| Mediatek | Mt6883 Firmware | All versions |
| Mediatek | Mt6885 Firmware | All versions |
| Mediatek | Mt6886 Firmware | All versions |
| Mediatek | Mt6889 Firmware | All versions |
| Mediatek | Mt6890 Firmware | All versions |
| Mediatek | Mt6891 Firmware | All versions |
| Mediatek | Mt6893 Firmware | All versions |
| Mediatek | Mt6895 Firmware | All versions |
| Mediatek | Mt6896 Firmware | All versions |
| Mediatek | Mt6897 Firmware | All versions |
| Mediatek | Mt6899 Firmware | All versions |
| Mediatek | Mt6980 Firmware | All versions |
| Mediatek | Mt6983 Firmware | All versions |
| Mediatek | Mt6985 Firmware | All versions |
| Mediatek | Mt6986d Firmware | All versions |
| Mediatek | Mt6988 Firmware | All versions |
| Mediatek | Mt2735 Firmware | All versions |
| Mediatek | Mt2737 Firmware | All versions |
| Mediatek | Mt6739 Firmware | All versions |
| Mediatek | Mt6761 Firmware | All versions |
| Mediatek | Mt6762 Firmware | All versions |
| Mediatek | Mt6989 Firmware | All versions |
| Mediatek | Mt6990 Firmware | All versions |
| Mediatek | Mt6991 Firmware | All versions |
| Mediatek | Mt6993 Firmware | All versions |
| Mediatek | Mt8668 Firmware | All versions |
Showing 50 of 68 affected configurations. See NVD for the full list.
References
- https://corp.mediatek.com/product-security-bulletin/May-2026Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2026-20449?
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Scan your code nowSource: NVD / NIST
