What is the CVSS score of CVE-2025-20725?

CVE-2025-20725 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.2%.

Which versions of Lr12a are affected by CVE-2025-20725?

CVE-2025-20725 presents notable security risk, a out-of-bounds write vulnerability rated CVSS 7.5.

How to fix or mitigate CVE-2025-20725?

Within 30 days: Identify all affected systems and apply vendor patches as part of regular patch cycle. If patching is delayed, consider network segmentation to limit exposure.

Lr12a CVE-2025-20725

HIGH

Out-of-bounds Write (CWE-787)

2025-11-04 security@mediatek.com

Memory Corruption Buffer Overflow Privilege Escalation Lr12a Nr15 Nr16

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:20 vuln.today

CVE Published

Nov 04, 2025 - 07:15 nvd

HIGH 7.5

DescriptionCVE.org

In ims service, 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: MOLY01671924; Issue ID: MSV-4620.

AnalysisAI

In ims service, there is a possible out of bounds write due to a missing bounds check. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. In ims service, 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: MOLY01671924; Issue ID: MSV-4620. Affected products include: Mediatek Lr12A, Mediatek Nr15, Mediatek Nr16.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).