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Medium 5.3Published Sep 7, 2026
CVE-2026-20503In Modem, there is a possible system crash due to a missing bounds check.
Updated under an hour ago ()
Does this affect you?
It affects MediaTek, Inc. MediaTek chipset and 57 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 5.3 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-617
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- MediaTek
- NVD analysis
- Analyzed
- Record last updated
- Sep 7, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
MediaTek, Inc. MediaTek chipset mediatek:chipset (from the name) | MT2716; MT2735; MT2737; MT6813; MT6833; MT6835; MT6853; MT6855; and 49 more ranges | CNA record |
mediatek mt2716_firmware mediatek:mt2716_firmware | all versions | NVD |
mediatek mt2735_firmware mediatek:mt2735_firmware | all versions | NVD |
mediatek mt2737_firmware mediatek:mt2737_firmware | all versions | NVD |
mediatek mt6813_firmware mediatek:mt6813_firmware | all versions | NVD |
mediatek mt6833_firmware mediatek:mt6833_firmware | all versions | NVD |
mediatek mt6835_firmware mediatek:mt6835_firmware | all versions | NVD |
mediatek mt6853_firmware mediatek:mt6853_firmware | all versions | NVD |
mediatek mt6855_firmware mediatek:mt6855_firmware | all versions | NVD |
mediatek mt6858_firmware mediatek:mt6858_firmware | all versions | NVD |
mediatek mt6873_firmware mediatek:mt6873_firmware | all versions | NVD |
mediatek mt6875_firmware mediatek:mt6875_firmware | all versions | NVD |
mediatek mt6877_firmware mediatek:mt6877_firmware | all versions | NVD |
mediatek mt6878_firmware mediatek:mt6878_firmware | all versions | NVD |
mediatek mt6879_firmware mediatek:mt6879_firmware | all versions | NVD |
mediatek mt6880_firmware mediatek:mt6880_firmware | all versions | NVD |
mediatek mt6881_firmware mediatek:mt6881_firmware | all versions | NVD |
mediatek mt6883_firmware mediatek:mt6883_firmware | all versions | NVD |
mediatek mt6885_firmware mediatek:mt6885_firmware | all versions | NVD |
mediatek mt6886_firmware mediatek:mt6886_firmware | all versions | NVD |
mediatek mt6889_firmware mediatek:mt6889_firmware | all versions | NVD |
mediatek mt6890_firmware mediatek:mt6890_firmware | all versions | NVD |
mediatek mt6891_firmware mediatek:mt6891_firmware | all versions | NVD |
mediatek mt6893_firmware mediatek:mt6893_firmware | all versions | NVD |
mediatek mt6895_firmware mediatek:mt6895_firmware | all versions | NVD |
mediatek mt6896_firmware mediatek:mt6896_firmware | all versions | NVD |
mediatek mt6897_firmware mediatek:mt6897_firmware | all versions | NVD |
mediatek mt6899_firmware mediatek:mt6899_firmware | all versions | NVD |
mediatek mt6980_firmware mediatek:mt6980_firmware | all versions | NVD |
mediatek mt6982vb_firmware mediatek:mt6982vb_firmware | all versions | NVD |
mediatek mt6983_firmware mediatek:mt6983_firmware | all versions | NVD |
mediatek mt6985_firmware mediatek:mt6985_firmware | all versions | NVD |
mediatek mt6986_firmware mediatek:mt6986_firmware | all versions | NVD |
mediatek mt6988_firmware mediatek:mt6988_firmware | all versions | NVD |
mediatek mt6989_firmware mediatek:mt6989_firmware | all versions | NVD |
mediatek mt6990_firmware mediatek:mt6990_firmware | all versions | NVD |
mediatek mt6991_firmware mediatek:mt6991_firmware | all versions | NVD |
mediatek mt6993_firmware mediatek:mt6993_firmware | all versions | NVD |
mediatek mt8668_firmware mediatek:mt8668_firmware | all versions | NVD |
mediatek mt8673_firmware mediatek:mt8673_firmware | all versions | NVD |
mediatek mt8675_firmware mediatek:mt8675_firmware | all versions | NVD |
mediatek mt8676_firmware mediatek:mt8676_firmware | all versions | NVD |
mediatek mt8678_firmware mediatek:mt8678_firmware | all versions | NVD |
mediatek mt8755_firmware mediatek:mt8755_firmware | all versions | NVD |
mediatek mt8771_firmware mediatek:mt8771_firmware | all versions | NVD |
mediatek mt8775_firmware mediatek:mt8775_firmware | all versions | NVD |
mediatek mt8791_firmware mediatek:mt8791_firmware | all versions | NVD |
mediatek mt8791t_firmware mediatek:mt8791t_firmware | all versions | NVD |
mediatek mt8792_firmware mediatek:mt8792_firmware | all versions | NVD |
mediatek mt8793_firmware mediatek:mt8793_firmware | all versions | NVD |
mediatek mt8795t_firmware mediatek:mt8795t_firmware | all versions | NVD |
mediatek mt8796_firmware mediatek:mt8796_firmware | all versions | NVD |
mediatek mt8797_firmware mediatek:mt8797_firmware | all versions | NVD |
mediatek mt8798_firmware mediatek:mt8798_firmware | all versions | NVD |
mediatek mt8863_firmware mediatek:mt8863_firmware | all versions | NVD |
mediatek mt8873_firmware mediatek:mt8873_firmware | all versions | NVD |
mediatek mt8883_firmware mediatek:mt8883_firmware | all versions | NVD |
mediatek mt8893_firmware mediatek:mt8893_firmware | all versions | NVD |
References
- https://www.mediatek.com/product-security-bulletin/September-2026vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.