Vulnerability · Published Jun 9, 2026 · Assigned by certcc
CVE-2026-8863CVE-2026-8863
High 7.8
In plain English
A high-severity security flaw in baramundi Management Suite from baramundi software. 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 1% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Official description
Multiple Microsoft-sigend UEFI SHIM bootloaders are vulnerable to SecureBoot bypass. An attacker with administrative privileges or the ability to modify the boot process could use one of the vulnerable shim bootloaders to bypass Secure Boot protections and execute arbitrary code before the operating system loads. Specific UEFI DBX update is required to block these vulnerable boot loaders.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Oracle Corporation | OracleLinux(7.2) shim | 0.9 |
| PC-Doctor | Service Center Enterprise | 14 – through 17.0.7536.900 |
| PC-Doctor | Service Center Drive Erase | 15 – through 17.0.7538.592 |
| PC-Doctor | Service Center Japan | 15 – through 17.0.7539.904 |
| PC-Doctor | Service Center | 14 – through 17.0.7535.900 |
| PC-Doctor | Network Factory for Linux (Bootable Diagnostics) | 6.9 – through 6.20.7711.267 |
| PC-Doctor | Factory for Linux (Bootable Diagnostics) | 6.9 – through 6.20.7710.267 |
| Spyrus | WTGCreator | 4.2 |
| Blancco UK | WhiteCanyon WipeDrive | 8.0.0 – through 8.1.3 |
| baramundi software | baramundi Management Suite | * – through 2024R1 |
| SUSE Linux | OpenSUSE shim | 0.9 |
| Finland Matriculation Board | Abitti 1 | 1.0.0 |
| NTC IT ROSA LLC | RosaLinux | R9 |
| NTC IT ROSA LLC | RosaLinux | R10 |
References
- Microsoft Vendor Security Advisory vendor-advisory
- CERT/CC Vulnerability Notice third-party-advisory
- https://www.kb.cert.org/vuls/id/616257