Local Privilege Escalation in MyReport Updater by MyReport
CVE-2026-110633

8.5HIGH

Key Information:

Vendor

Report One

Status
Myreport Updater
Vendor
CVE Published:
14 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-110633?

The MyReport Updater up to version 2.1.1 is susceptible to a local privilege escalation vulnerability that potentially allows low-privileged users to exploit the SYSTEM updater service. This vulnerability can be exploited via the UpdaterManager.exe tool over gRPC, enabling an attacker to specify a malicious reference server and install location. Consequently, adversaries can plant DLLs, such as HID.dll, which are then loaded by legitimate processes like osk.exe, granting the attacker elevated SYSTEM privileges without authorization.

Affected Version(s)

MyReport Updater 0 <= 2.1.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-110633 - Proof of Concept

References

https://blog.quarkslab.com/myreport-updater-from-grpc-to-...
third-party-advisorytechnical-descriptionexploit
https://www.myreport.fr/myreport/
product
https://www.vulncheck.com/advisories/myreport-updater-thr...
third-party-advisory

CVSS V4

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Lucas Laise of Quarkslab
.