CVE-2025-20704
CVE-2025-20704 is a high-severity vulnerability in Mediatek Nr17 with a CVSS 3.x base score of 8.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: High (CVSS 3.x base score 8.0)
- EPSS exploit prediction: 0% (20th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-26486
- Weakness: CWE-787
- Affected product: Mediatek Nr17
- Published:
- Last modified:
Description
In Modem, 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 needed for exploitation. Patch ID: MOLY01516959; Issue ID: MSV-3502.
Frequently asked questions
- What is CVE-2025-20704?
- In Modem, 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 needed for exploitation. Patch ID: MOLY01516959; Issue ID: MSV-3502.
- How severe is CVE-2025-20704?
- CVE-2025-20704 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2025-20704 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-20704?
- CVE-2025-20704 primarily affects Mediatek Nr17. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2025-20704?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2025-20704 have an EU (EUVD) identifier?
- Yes. CVE-2025-20704 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26486.
- When was CVE-2025-20704 published?
- CVE-2025-20704 was published on 2025-09-01 and last updated on 2026-06-17.
References
Affected products (2)
- cpe:2.3:o:mediatek:nr17:-:*:*:*:*:*:*:*
- cpe:2.3:o:mediatek:nr17r:-:*:*:*:*:*:*:*
More vulnerabilities in Mediatek Nr17
- CVE-2025-20634 — Critical (CVSS 9.8): In Modem, there is a possible out of bounds write due to a missing bounds check. This could lead to remote code…
- CVE-2024-20082 — Critical (CVSS 9.8): In Modem, there is a possible memory corruption due to a missing bounds check. This could lead to remote code execution…
- CVE-2024-20067 — Critical (CVSS 9.8): In modem, there is a possible out of bounds write due to improper input invalidation. This could lead to remote denial…
- CVE-2023-32874 — Critical (CVSS 9.8): In Modem IMS Stack, there is a possible out of bounds write due to a missing bounds check. This could lead to remote…
- CVE-2023-20819 — Critical (CVSS 9.8): In CDMA PPP protocol, there is a possible out of bounds write due to a missing bounds check. This could lead to remote…
- CVE-2025-20708 — High (CVSS 8.8): In Modem, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote…
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