CVE-2026-2999
CWE-494Published: March 2, 2026· Updated: Mar 2, 2026
Official Description
IDExpert Windows Logon Agent developed by Changing has a Remote Code Execution vulnerability, allowing unauthenticated remote attackers to force the system to download arbitrary executable files from a remote source and execute them.
Risk Analysis
This critical remote code execution vulnerability in IDExpert Windows Logon Agent allows unauthenticated remote attackers to force the system to download and execute arbitrary executable files. With a CVSS score of 9.8, this flaw poses an extremely high risk, enabling full system compromise. The lack of an EPSS score means its exploitation likelihood is currently unknown, but its severity demands immediate attention.
No public exploit is currently known for this vulnerability, and it is not listed in CISA's KEV catalog. The vulnerability is remotely exploitable with low attack complexity and no authentication required.
Implement strict controls over file downloads and execution in IDExpert Windows Logon Agent, allowing only trusted sources and signed executables. Consult the vendor, Changing, for any available patches or security updates to address this critical vulnerability.
Technical Analysis
CVE-2026-2999 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Exploit & PoC Resources
All References (3)
Quick Facts
Related CVEs (CWE-494)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-2999 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts