7.5

CVE-2026-21555: unisoc (shanghai) technologies co., ltd. udx710 Improper Input Validation

CVSS: 7.5v3.1HighDeferred
Published 03-08-2026Last modified 03-08-2026
Open JSON

Vulnerability summary

CVE-2026-21555 is a high (CVSS 7.5) Improper Input Validation vulnerability in unisoc (shanghai) technologies co., ltd. udx710. EPSS estimates a 0.71% chance of exploitation in the next 30 days, higher than 52.7% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.71%
0%100%
Low · +0.30 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 03-08-2026
    PublishedVulnerability first disclosed.
  2. 03-08-2026
    Last modifiedVulnerability information updated.

Description

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

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.71%

Chance of exploitation in the next 30 days

Percentile

53%

Versus all other CVEs

30-day change

+0.30 pp

From 0.40% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.71%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Unisoc (shanghai) technologies co., ltd.1 product

1 vendor · 1 product

References

1 links