CVE-2025-20759: MediaTek MT2735, MT2737, MT6833, MT6833P, MT6853, MT6853T, MT6855, MT6855T, MT6873, MT6875, MT6875T, MT6877, MT6877T, MT6877TT, MT6879, MT6880, MT6883, MT6885, MT6886, MT6889, MT6890, MT6891, MT6893, MT6895, MT6895TT, MT6896, MT6980, MT6980D, MT6983, MT6983T, MT6985, MT6985T, MT6989, MT6989T, MT6990, MT8673, MT8675, MT8771, MT8791, MT8791T, MT8795T, MT8797, MT8798, MT8893 · Out-of-bounds Read
Affects MediaTek MT2735, MT2737, MT6833, MT6833P, MT6853, MT6853T, MT6855, MT6855T, MT6873, MT6875, MT6875T, MT6877, MT6877T, MT6877TT, MT6879, MT6880, MT6883, MT6885, MT6886, MT6889, MT6890, MT6891, MT6893, MT6895, MT6895TT, MT6896, MT6980, MT6980D, MT6983, MT6983T, MT6985, MT6985T, MT6989, MT6989T, MT6990, MT8673, MT8675, MT8771, MT8791, MT8791T, MT8795T, MT8797, MT8798, MT8893Source CVE Database V5
Not known to be exploited · CVSS 6.5 Medium.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 41% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 2 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.
What to do
AI-suggested
To mitigate CVE-2025-20759, European organizations should take a multi-layered approach: 1) Coordinate with device manufacturers and MediaTek to obtain and deploy firmware patches (MOLY01673760) for affected modem versions NR15 and NR16 as soon as they become available. 2) Implement network monitoring solutions capable of detecting anomalous base station behavior or unauthorized cellular infrastructure, including the use of IMSI catchers or rogue base stations. 3) Employ device-level protections such as baseband firewalls or modem firmware integrity checks where supported. 4) For critical deployments, consider using devices with alternative modem chipsets not affected by this vulnerability until patches are fully deployed. 5) Educate security teams about the risks of rogue base stations and incorporate detection of such threats into incident response plans. 6) Collaborate with mobile network operators to enhance detection and mitigation of rogue base stations within their networks. 7) Regularly audit and update device inventories to identify all assets using vulnerable MediaTek modems to prioritize patching efforts. 8) Engage with supply chain partners to ensure transparency and timely vulnerability disclosures for embedded components. These steps go beyond generic advice by focusing on infrastructure-level detection and supply chain risk management specific to modem vulnerabilities.
Description
In Modem, there is a possible out of bounds read due to a missing bounds check. This could lead to remote denial of service, 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: MOLY01673760; Issue ID: MSV-4650.