# CVE-2026-20592: MediaTek Modem side-channel information disclosure

Source: https://junglewise.ai/threats/cve-2026-20592-in-modem-there-is-a-possible-information-disclosure-due-to-side  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-02. Updated: 2026-11-02  
License: CC BY 4.0 with a link back

CVE-2026-20592 · Severity: info · Published 2026-11-02

MediaTek modems are components that handle cellular communication in smartphones and IoT devices. A side-channel vulnerability in the modem could allow an attacker with system-level access to extract sensitive information through timing or other indirect methods. While this requires existing system privilege, it could expose cryptographic keys or other protected data used by the modem.

Technologies: [MediaTek Modem](https://junglewise.ai/threats/technologies/modem). Vendors: [MediaTek](https://junglewise.ai/threats/vendors/mediatek).

## Quick answers

**Is CVE-2026-20592 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-20592 being exploited in the wild.

**How severe is CVE-2026-20592?** Informational severity, published 2 November 2026.

**Which products and versions are affected?** MediaTek Modem.

**Is there a fix for CVE-2026-20592?** 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.

**How is CVE-2026-20592 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-20592?** Check whether you run MediaTek Modem. 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.

## Technical details

A side-channel information disclosure vulnerability exists in MediaTek modems where an attacker with system privilege could infer sensitive information through timing analysis or similar indirect methods. The vulnerability requires local access and existing system privilege but does not require user interaction. Patch MOLY01744265 is available to address this issue.

## Affected products

- MediaTek Modem

## Timeline

- 2026-11-02: disclosed

## References

- [https://www.mediatek.com/product-security-bulletin/November-2026](https://www.mediatek.com/product-security-bulletin/November-2026)

## Related threats

- [MediaTek Modem privilege escalation via permissions bypass](https://junglewise.ai/threats/cve-2026-68591-in-modem-there-is-a-possible-escalation-of-privilege-due-to-a)
- [MediaTek Modem out-of-bounds write privilege escalation](https://junglewise.ai/threats/cve-2026-68589-in-modem-there-is-a-possible-out-of-bounds-write-due-to-a-missing)
- [MediaTek Modem integer overflow denial of service](https://junglewise.ai/threats/cve-2026-68588-in-modem-there-is-a-possible-way-for-xxx-to-xxxxx-due-to-an)
- [MediaTek Modem logic error denial of service](https://junglewise.ai/threats/cve-2026-20600-in-modem-there-is-a-possible-application-crash-due-to-a-logic)
- [MediaTek Modem privilege escalation due to missing permission check](https://junglewise.ai/threats/cve-2026-20599-in-modem-there-is-a-possible-escalation-of-privilege-due-to-a)