{"cve":"CVE-2026-20449","nvd":{"published":"2026-05-04T07:15:59.610","modified":"2026-10-26T19:10:00.163","status":"Analyzed","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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":6.5},"cwes":["CWE-120"],"references":["https://corp.mediatek.com/product-security-bulletin/May-2026"],"products":["mediatek:mt2735_firmware","mediatek:mt2737_firmware","mediatek:mt6739_firmware","mediatek:mt6761_firmware","mediatek:mt6762_firmware","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","mediatek:mt6877_firmware","mediatek:mt6878_firmware","mediatek:mt6879_firmware","mediatek:mt6880_firmware","mediatek:mt6883_firmware","mediatek:mt6885_firmware","mediatek:mt6886_firmware","mediatek:mt6889_firmware","mediatek:mt6890_firmware","mediatek:mt6891_firmware","mediatek:mt6893_firmware","mediatek:mt6895_firmware","mediatek:mt6896_firmware","mediatek:mt6897_firmware","mediatek:mt6899_firmware","mediatek:mt6980_firmware","mediatek:mt6983_firmware","mediatek:mt6985_firmware","mediatek:mt6986d_firmware","mediatek:mt6988_firmware","mediatek:mt6989_firmware","mediatek:mt6990_firmware","mediatek:mt6991_firmware","mediatek:mt6993_firmware","mediatek:mt8668_firmware"],"source":"nvd","synced_at":"2026-10-26T19:31:02.781428341+00:00"},"epss":{"cve":"CVE-2026-20449","score":0.00224,"percentile":0.12926,"date":"2026-10-26"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}