CVE-2025-20727

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.

Published: 2025-11-04 Last update: 2026-02-04 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-20727 is rated Moderate Risk (46.1/100): CVSS High severity, with low exploitation likelihood (EPSS 0.18%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-20727

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-14 0.15% 0.18% +0.03%
2 2026-04-03 0.15% 0.15% -0.01%
3 2026-03-19 — 0.15% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-20727

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.1 3.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-20727

Affected software / configurations for CVE-2025-20727

Vendor Product Version Raw CPE
mediatek lr12a — cpe:2.3:o:mediatek:lr12a:-:*:*:*:*:*:*:*
mediatek nr15 — cpe:2.3:o:mediatek:nr15:-:*:*:*:*:*:*:*
mediatek nr16 — cpe:2.3:o:mediatek:nr16:-:*:*:*:*:*:*:*
mediatek nr17 — cpe:2.3:o:mediatek:nr17:-:*:*:*:*:*:*:*
mediatek nr17r — cpe:2.3:o:mediatek:nr17r:-:*:*:*:*:*:*:*

References for CVE-2025-20727

cvelogic Threat Intelligence