CVE-2025-69279: 
NixOS vulnerability analysis and mitigation

CVE-2025-69279 is an improper input validation vulnerability in the NR (New Radio/5G) modem component affecting Android devices powered by Unisoc chipsets (T8100, T9100, T8200, T8300). A remote, unauthenticated attacker can send malformed network input to trigger a system crash, resulting in a denial of service condition. The vulnerability affects Android versions 13.0, 14.0, 15.0, and 16.0 on affected hardware. It was published on March 9, 2026, and addressed in the Google Android Security Bulletin for 2026-03-01. The CVSS v3.1 base score is 7.5 (High) (Unisoc Advisory, Android Bulletin).

The root cause is classified as CWE-20 (Improper Input Validation) within the NR modem subsystem of Unisoc chipsets. The modem fails to adequately validate incoming network data, allowing a remote attacker to craft malformed 5G NR protocol messages that trigger an unhandled condition leading to a system crash. No authentication, user interaction, or elevated privileges are required for exploitation, as the attack vector is the network layer directly interfacing with the modem. No public technical write-ups or proof-of-concept code have been identified at this time (Unisoc Advisory, Android Bulletin).

Successful exploitation results in a system crash on the affected Android device, causing complete loss of availability (denial of service). There is no impact on confidentiality or data integrity, as the vulnerability only affects availability. Affected devices running on Unisoc T8100, T9100, T8200, or T8300 chipsets with Android 13–16 could be rendered temporarily inoperable until restarted, disrupting all device functions including communications (Unisoc Advisory, Android Bulletin).

There is no known public proof-of-concept exploit and no evidence of active in-the-wild exploitation at this time. The EPSS score is approximately 0.20%, indicating a low probability of exploitation in the near term. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. No threat actor attribution has been reported (Unisoc Advisory, Android Bulletin).

Unisoc has released patches addressed in the Google Android Security Bulletin dated 2026-03-01 (patch levels 2026-03-01 and 2026-03-02). Users should update affected Android devices (versions 13.0, 14.0, 15.0, and 16.0 on Unisoc T8100/T9100/T8200/T8300 chipsets) to the patched firmware as soon as OEM updates become available. No configuration-based workarounds have been published; applying the vendor patch is the only recommended remediation (Unisoc Advisory, Android Bulletin).

Coverage of CVE-2025-69279 has been limited to routine security news aggregators and vulnerability tracking platforms, with no notable independent researcher commentary or significant social media discussion identified. The vulnerability was mentioned in the context of the broader Android March 2026 security bulletin, which addressed 129 flaws (GBHackers).