CVE-2026-8863: CWE-347: Improper Verification of Cryptographic Signature in PC-Doctor Service Center Enterprise
CVE-2026-8863 is a vulnerability in PC-Doctor Service Center Enterprise version 14 involving improper verification of cryptographic signatures. This issue relates to multiple versions of UEFI SHIM bootloaders being vulnerable to SecureBoot bypass due to lack of enforcement and validation of SBAT. The vulnerability affects authenticode signatures used by several software products, including PC-Doctor Service Center versions 15 and 16. No official patch or remediation guidance is currently available.
AI Analysis
Technical Summary
This vulnerability, identified as CWE-347 and CWE-354, involves improper verification of cryptographic signatures in PC-Doctor Service Center Enterprise version 14. It is part of a broader issue affecting multiple UEFI SHIM bootloader versions, which can be bypassed in SecureBoot due to missing enforcement and validation of the Secure Boot Advanced Targeting (SBAT) mechanism. Several authenticode signatures are impacted, including those for PC-Doctor Service Center 15 and 16, among others. The vulnerability was published on June 9, 2026, but no CVSS score or remediation level has been provided. The vendor has not released a patch or official fix at this time.
Potential Impact
The vulnerability allows potential bypass of SecureBoot protections by exploiting improper cryptographic signature verification. This could undermine the integrity of the boot process, potentially allowing unauthorized code to execute during system startup. However, there are no known exploits in the wild at this time, and the exact impact depends on exploitation feasibility and environment.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch is currently available, users should monitor vendor communications for updates. No specific mitigation steps are provided in the available data.
CVE-2026-8863: CWE-347: Improper Verification of Cryptographic Signature in PC-Doctor Service Center Enterprise
Description
CVE-2026-8863 is a vulnerability in PC-Doctor Service Center Enterprise version 14 involving improper verification of cryptographic signatures. This issue relates to multiple versions of UEFI SHIM bootloaders being vulnerable to SecureBoot bypass due to lack of enforcement and validation of SBAT. The vulnerability affects authenticode signatures used by several software products, including PC-Doctor Service Center versions 15 and 16. No official patch or remediation guidance is currently available.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CWE-347 and CWE-354, involves improper verification of cryptographic signatures in PC-Doctor Service Center Enterprise version 14. It is part of a broader issue affecting multiple UEFI SHIM bootloader versions, which can be bypassed in SecureBoot due to missing enforcement and validation of the Secure Boot Advanced Targeting (SBAT) mechanism. Several authenticode signatures are impacted, including those for PC-Doctor Service Center 15 and 16, among others. The vulnerability was published on June 9, 2026, but no CVSS score or remediation level has been provided. The vendor has not released a patch or official fix at this time.
Potential Impact
The vulnerability allows potential bypass of SecureBoot protections by exploiting improper cryptographic signature verification. This could undermine the integrity of the boot process, potentially allowing unauthorized code to execute during system startup. However, there are no known exploits in the wild at this time, and the exact impact depends on exploitation feasibility and environment.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch is currently available, users should monitor vendor communications for updates. No specific mitigation steps are provided in the available data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- certcc
- Date Reserved
- 2026-05-18T19:41:10.790Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Gcve Source
- db.gcve.eu
Threat ID: 6a2866f48dd33fbd85722264
Added to database: 6/9/2026, 7:18:12 PM
Last enriched: 6/9/2026, 9:57:24 PM
Last updated: 6/10/2026, 6:48:06 AM
Views: 8
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