A vulnerability was discovered in the PCI Express (PCIe) Integrity and Data Encryption (IDE) specification, where insufficient guidance on tag reuse after completion timeouts may allow multiple outstanding Non-Posted Requests to share the same tag. This tag aliasing condition can result in completions being delivered to the wrong security context, potentially compromising data integrity and confidentiality.
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://pcisig.com/PCIeIDEStandardVulnerabilities Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 6.5 · pcisigNVD modified 2026-10-14 21:10
Affected (CPE criteria) 1
cpe:2.3:a:pcisig:pci_express_integrity_and_data_encryption:-:*:*:*:*:*:*:*
References 2
- https://pcisig.com/PCIeIDEStandardVulnerabilities Vendor Advisory
- https://pcisig.com/specifications Product