Is CVE-2025-20727 actively exploited?

CVE-2025-20727 has no public evidence of in-the-wild exploitation as of 2026-02-04.

What is the CVSS score for CVE-2025-20727?

CVE-2025-20727 has a CVSS score of 8.1 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2025-20727?

Patch guidance is available from mediatek security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2025-20727.

Fix CVE-2025-20727 - HIGH mediatek lr12a

Q: Which products are affected by CVE-2025-20727?

5 products: mediatek lr12a, mediatek nr15, mediatek nr16, mediatek nr17, mediatek nr17r.

Description

In Modem, there is a possible out of bounds write due to a heap buffer overflow. 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: MOLY01672601; Issue ID: MSV-4623.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: high
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-787 · Out-of-bounds Write

Metadata

Primary Vendor: MEDIATEK
Published: 11/4/2025
Last Modified: 2/4/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

mediatek : lr12amediatek : nr15mediatek : nr16mediatek : nr17mediatek : nr17r

Remediation Guidance

Executive Summary

Cite this page

CVE-2025-20727. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2025-20727

View on NIST NVD

CVE-2025-20727 vulnerability