CVE-2025-71253: Unisoc (Shanghai) Technologies SC7731E/SC9832E/SC9863A/T310/T610/T618/T7200/T7225/T7250/T7255/T7280/T7300/T8100/T9100/T8200/T8300 · Improper Input Validation
Affects Unisoc (Shanghai) Technologies SC7731E/SC9832E/SC9863A/T310/T610/T618/T7200/T7225/T7250/T7255/T7280/T7300/T8100/T9100/T8200/T8300Source CVE Database V5
Not known to be exploited · CVSS 7.5 High.
Data as of 2 Nov 2026, 22:58 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 25% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 6 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 2 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Unisoc (Shanghai) Technologies Co., Ltd.SC7731E/SC9832E/SC9863A/T310/T610/T618/T7200/T7225/T7250/T7255/T7280/T7300/T8100/T9100/T8200/T8300 | Affected
| Fixed in– |
AI-suggested
No other specific mitigations are provided at this time.
Description
CVE-2025-71253 is a high-severity vulnerability in the modem IMS component of various Unisoc (Shanghai) Technologies chipsets affecting multiple Android versions from 13 to 16. The issue arises from improper input validation, which could allow a remote attacker to cause a denial of service without requiring any privileges or user interaction. There is no indication of impact on confidentiality or integrity, only availability. No official patch or remediation guidance has been provided yet, and no known exploits are reported in the wild. Users of affected devices should monitor vendor advisories for updates.