CVE-2026-20504In Modem, there is a possible system crash due to a missing bounds check.
Updated under an hour ago ()
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It affects MediaTek, Inc. MediaTek chipset and 19 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: MOLY00755024; Issue ID: MSV-7865.
- 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) | MT2735; MT6833; MT6853; MT6855; MT6873; MT6875; MT6877; MT6880; and 11 more ranges | CNA record |
mediatek mt2735_firmware mediatek:mt2735_firmware | all versions | NVD |
mediatek mt6833_firmware mediatek:mt6833_firmware | all versions | NVD |
mediatek mt6853_firmware mediatek:mt6853_firmware | all versions | NVD |
mediatek mt6855_firmware mediatek:mt6855_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 mt6880_firmware mediatek:mt6880_firmware | all versions | NVD |
mediatek mt6883_firmware mediatek:mt6883_firmware | all versions | NVD |
mediatek mt6885_firmware mediatek:mt6885_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 mt8675_firmware mediatek:mt8675_firmware | all versions | NVD |
mediatek mt8771_firmware mediatek:mt8771_firmware | all versions | NVD |
mediatek mt8791_firmware mediatek:mt8791_firmware | all versions | NVD |
mediatek mt8791t_firmware mediatek:mt8791t_firmware | all versions | NVD |
mediatek mt8797_firmware mediatek:mt8797_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.