Vulnerability · Published Jun 26, 2026 · Assigned by NEC
CVE-2026-8797
High 8.5
In plain English
A high-severity security flaw in ExpressUpdate Agent for Windows from NEC Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 4% of all known vulnerabilities).
Severity (CVSS 4.0)8.5High
Exploit odds (30 days)0.1%top 95.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An access control deficiency vulnerability exists in ExpressUpdate Agent for Windows. If a malicious user gains access to the product, arbitrary code could be executed with SYSTEM privileges.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| NEC Corporation | ExpressUpdate Agent for Windows | 3.24 and prior |
Weakness: CWE-782 · Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N