In modem, there is a possible improper input validation.

published 2026-08-03 3 mo ago modified 2026-10-23 16 d ago also EUVD-2026-52230

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 53%
public exploits: 0; none known

In modem, there is a possible improper input validation. This could lead to remote denial of service with no additional execution privileges needed

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 3 mo ago (2026-08-03)

Exploit prediction

0.71% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Unisoc (Shanghai) Technologies Co., Ltd. T8100/T9100/T8200/T8300

Classification

Weakness

CWE-20 Improper Input Validation

References

unisoc.com /en/support/product-security-bulletin/2084109408382668801

Sources

CVE List CVE-2026-21549
NVD CVE-2026-21549

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary