Vulnerability in Baramundi Software Management Suite
CVE-2026-8863
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.001 (1.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: -0.000
Affected products
- Baramundi Software Management Suite
- Blancco Uk Whitecanyon Wipedrive — versions 8.0.0
- Finland Matriculation Board Abitti 1 — versions 1.0.0
- Ntc It Rosa Llc Rosalinux — versions R9, R10
- Oracle Corporation Oraclelinux(7.2) Shim — versions 0.9
- Pc-Doctor Factory For Linux (Bootable Diagnostics) — versions 6.9
- Pc-Doctor Network Factory For Linux (Bootable Diagnostics) — versions 6.9
- Pc-Doctor Service Center — versions 14
- Pc-Doctor Service Center Drive Erase — versions 15
- Pc-Doctor Service Center Enterprise — versions 14
Public proof-of-concept exploits
References
- kb.cert.org/vuls/id/616257 (third-party-advisory)
- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-8863 (vendor-advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2026-8863?
- CVE-2026-8863 is a high-severity vulnerability in Baramundi Software Management Suite, classified under CWE-347: IMPROPER VERIFICATION OF CRYPTOGRAPHIC SIGNATURE. CVSS score: 7.8/10. Published 2026-06-09.
- How severe is CVE-2026-8863?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2026-8863 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.