# CVE-2026-20585: CVE-2026-20585

Status: published. Published: 2026-11-02. Updated: 2026-11-02.

In Modem, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege, 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: MOLY01338165; Issue ID: MSV-9660.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- MediaTek, Inc. / MediaTek chipset: MT2716 (affected); MT2718 (affected); MT2737 (affected); MT6813 (affected); MT6815 (affected); MT6835 (affected); MT6858 (affected); MT6878 (affected); MT6879 (affected); MT6881 (affected); MT6886 (affected); MT6895 (affected); MT6896 (affected); MT6897 (affected); MT6899 (affected); MT6980 (affected); MT6982 (affected); MT6983 (affected); MT6985 (affected); MT6986 (affected); MT6988 (affected); MT6989 (affected); MT6990 (affected); MT6991 (affected); MT6993 (affected); MT8186 (affected); MT8188 (affected); MT8189 (affected); MT8195 (affected); MT8196 (affected); MT8367 (affected); MT8391 (affected); MT8676 (affected); MT8678 (affected). Source: CNA: MediaTek

## Severity and prioritization

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-787

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://www.mediatek.com/product-security-bulletin/November-2026 (CNA: MediaTek)

## Provenance

- CNA: MediaTek: https://www.cve.org/CVERecord?id=CVE-2026-20585; retrieved 2026-11-02; source updated 2026-11-02

Revision: 6717ee12dcaa445203a8e8db55bb201897d338ab6fee695cf9afcbbfa08a6dd5

Canonical: https://y2.dev/cve/CVE-2026-20585