# CVE-2025-20763: In mmdvfs, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation…

Source: https://junglewise.ai/threats/cve-2025-20763-in-mmdvfs-there-is-a-possible-out-of-bounds-write-due-to-a  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-12-02  
License: CC BY 4.0 with a link back

CVE-2025-20763 · Severity: high · CVSS 7.8 · Published 2025-12-02

In mmdvfs, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10267218; Issue ID: MSV-5032.

Technologies: [Google Android](https://junglewise.ai/threats/technologies/android), [MediaTek MT6833](https://junglewise.ai/threats/technologies/mt6833), [MediaTek Mt6835](https://junglewise.ai/threats/technologies/mt6835), [MediaTek Mt6853](https://junglewise.ai/threats/technologies/mt6853), [MediaTek Mt6855](https://junglewise.ai/threats/technologies/mt6855), [MediaTek Mt6877](https://junglewise.ai/threats/technologies/mt6877), [MediaTek Mt6878](https://junglewise.ai/threats/technologies/mt6878), [MediaTek Mt6879](https://junglewise.ai/threats/technologies/mt6879), [MediaTek Mt6883](https://junglewise.ai/threats/technologies/mt6883), [MediaTek Mt6885](https://junglewise.ai/threats/technologies/mt6885), [MediaTek Mt6886](https://junglewise.ai/threats/technologies/mt6886), [MediaTek Mt6889](https://junglewise.ai/threats/technologies/mt6889), [MediaTek Mt6893](https://junglewise.ai/threats/technologies/mt6893), [MediaTek Mt6895](https://junglewise.ai/threats/technologies/mt6895), [MediaTek Mt6897](https://junglewise.ai/threats/technologies/mt6897), [MediaTek Mt6899](https://junglewise.ai/threats/technologies/mt6899), [MediaTek Mt6983](https://junglewise.ai/threats/technologies/mt6983), [MediaTek Mt6985](https://junglewise.ai/threats/technologies/mt6985), [MediaTek Mt6989](https://junglewise.ai/threats/technologies/mt6989), [MediaTek Mt6991](https://junglewise.ai/threats/technologies/mt6991), [MediaTek Mt8196](https://junglewise.ai/threats/technologies/mt8196), [MediaTek MT8676](https://junglewise.ai/threats/technologies/mt8676), [MediaTek MT8678](https://junglewise.ai/threats/technologies/mt8678), [MediaTek MT8792](https://junglewise.ai/threats/technologies/mt8792), [MediaTek Mt8793](https://junglewise.ai/threats/technologies/mt8793), [MediaTek MT8796](https://junglewise.ai/threats/technologies/mt8796), [MediaTek MT8873](https://junglewise.ai/threats/technologies/mt8873), [MediaTek MT8893](https://junglewise.ai/threats/technologies/mt8893). Vendors: [Google](https://junglewise.ai/threats/vendors/google), [MediaTek](https://junglewise.ai/threats/vendors/mediatek).

## Quick answers

**Is CVE-2025-20763 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-20763 being exploited in the wild.

**How severe is CVE-2025-20763?** High severity, with a CVSS score of 7.8, published 2 December 2025.

**Which products and versions are affected?** Google Android, MediaTek MT6833, MediaTek Mt6835, MediaTek Mt6853 and 24 more. The advisory does not name versions.

**Is there a fix for CVE-2025-20763?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2025-20763?** Check whether you run Google Android, MediaTek MT6833, MediaTek Mt6835 or one of the others listed. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Google Android
- MediaTek MT6833
- MediaTek Mt6835
- MediaTek Mt6853
- MediaTek Mt6855
- MediaTek Mt6877
- MediaTek Mt6878
- MediaTek Mt6879
- MediaTek Mt6883
- MediaTek Mt6885
- MediaTek Mt6886
- MediaTek Mt6889
- MediaTek Mt6893
- MediaTek Mt6895
- MediaTek Mt6897
- MediaTek Mt6899
- MediaTek Mt6983
- MediaTek Mt6985
- MediaTek Mt6989
- MediaTek Mt6991
- MediaTek Mt8196
- MediaTek MT8676
- MediaTek MT8678
- MediaTek MT8792
- MediaTek Mt8793
- MediaTek MT8796
- MediaTek MT8873
- MediaTek MT8893

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