CVE-2026-20885

🗓️ 11 Aug 2026 16:26:51Reported by intelType

Improper authentication in Intel TDX module allows local privileged attackers to escalate privileges and disclose information.

Reporter	Title	Published	Views	Family All 11
Cvelist	CVE-2026-20885	11 Aug 202616:26	–	cvelist
Oracle linux	microcode_ctl security update	16 Sep 202600:00	–	oraclelinux
EUVD	EUVD-2026-56505	11 Aug 202616:26	–	euvd
HPE Security Bulletins	HPESBHF05101 rev.2 - HPE ProLiant DL/ML/XD, Alletra, Edgeline, and Synergy Server Using Certain Intel Processors, INTEL-SA-01436, Intel Trust Domain Extensions (Intel TDX) module Advisory, Multiple Vulnerabilities	11 Aug 202600:00	–	hpe
HPE Security Bulletins	HPESBHF05108 rev.1 - HPE StoreEasy Server Using Certain Intel Processors, INTEL-SA-01436, Intel Trust Domain Extensions (Intel TDX) module Advisory, Multiple Vulnerabilities	3 Sep 202600:00	–	hpe
Intel	2026.3 IPU, Intel® Trust Domain Extensions (Intel® TDX) module Advisory	11 Aug 202600:00	–	intel
NVD	CVE-2026-20885	11 Aug 202617:17	–	nvd
Tenable Nessus	Oracle Linux 10 / 8 / 9 : microcode_ctl (ELSA-2026-500239)	3 Sep 202600:00	–	nessus
Positive Technologies	PT-2026-70311	11 Aug 202600:00	–	ptsecurity
Rapid7 Vulnerability Database (full)	CVE-2026-20885: Improper Authentication	11 Aug 202600:00	–	rapid7

NVD

Node

AND

intel tdx_moduleRange≤1.5.28

intel xeon_bronze_3408uMatch-

intel xeon_gold_5411nMatch-

intel xeon_gold_5412uMatch-

intel xeon_gold_5415Match-

intel xeon_gold_5416sMatch-

intel xeon_gold_5418nMatch-

intel xeon_gold_5418yMatch-

intel xeon_gold_5420Match-

intel xeon_gold_6414uMatch-

intel xeon_gold_6416hMatch-

intel xeon_gold_6418hMatch-

intel xeon_gold_6421nMatch-

intel xeon_gold_6426yMatch-

intel xeon_gold_6428nMatch-

intel xeon_gold_6430Match-

intel xeon_gold_6434Match-

intel xeon_gold_6434hMatch-

intel xeon_gold_6438mMatch-

intel xeon_gold_6438nMatch-

intel xeon_gold_6438yMatch-

intel xeon_gold_6442yMatch-

intel xeon_gold_6444yMatch-

intel xeon_gold_6448hMatch-

intel xeon_gold_6448yMatch-

intel xeon_gold_6454sMatch-

intel xeon_gold_6458qMatch-

intel xeon_platinum_8444hMatch-

intel xeon_platinum_8450hMatch-

intel xeon_platinum_8452yMatch-

intel xeon_platinum_8454hMatch-

intel xeon_platinum_8458pMatch-

intel xeon_platinum_8460hMatch-

intel xeon_platinum_8460yMatch-

intel xeon_platinum_8461vMatch-

intel xeon_platinum_8462yMatch-

intel xeon_platinum_8468Match-

intel xeon_platinum_8468hMatch-

intel xeon_platinum_8468vMatch-

intel xeon_platinum_8470Match-

intel xeon_platinum_8470nMatch-

intel xeon_platinum_8470qMatch-

intel xeon_platinum_8471nMatch-

intel xeon_platinum_8480Match-

intel xeon_silver_4410tmMatch-

intel xeon_silver_4410yMatch-

intel xeon_silver_4416Match-

Node

AND

intel tdx_moduleRange≤1.5.28

intel xeon_bronze_3508uMatch-

intel xeon_gold_5512uMatch-

intel xeon_gold_5515+Match-

intel xeon_gold_5520+Match-

intel xeon_gold_6526yMatch-

intel xeon_gold_6530Match-

intel xeon_gold_6534Match-

intel xeon_gold_6538nMatch-

intel xeon_gold_6538y+Match-

intel xeon_gold_6542yMatch-

intel xeon_gold_6544yMatch-

intel xeon_gold_6548nMatch-

intel xeon_gold_6548y+Match-

intel xeon_gold_6554sMatch-

intel xeon_gold_6558qMatch-

intel xeon_platinum_8558Match-

intel xeon_platinum_8558pMatch-

intel xeon_platinum_8558uMatch-

intel xeon_platinum_8562y+Match-

intel xeon_platinum_8568y+Match-

intel xeon_platinum_8570Match-

intel xeon_platinum_8571nMatch-

intel xeon_platinum_8580Match-

intel xeon_platinum_8581vMatch-

intel xeon_platinum_8592+Match-

intel xeon_platinum_8592vMatch-

intel xeon_platinum_8593qMatch-

intel xeon_silver_4509yMatch-

intel xeon_silver_4510Match-

intel xeon_silver_4510tMatch-

intel xeon_silver_4514yMatch-

intel xeon_silver_4516y+Match-

Node

AND

intel tdx_moduleRange≤2.0.16

intel xeon_4108Match-

intel xeon_6315pMatch-

intel xeon_6325pMatch-

intel xeon_6333pMatch-

intel xeon_6337pMatch-

intel xeon_6349pMatch-

intel xeon_6353pMatch-

intel xeon_6357pMatch-

intel xeon_6369pMatch-

intel xeon_6377pMatch-

intel xeon_6503pMatch-

intel xeon_6503p-bMatch-

intel xeon_6505pMatch-

intel xeon_6507pMatch-

intel xeon_6511pMatch-

intel xeon_6513p-bMatch-

intel xeon_6515pMatch-

intel xeon_6516p-bMatch-

intel xeon_6517pMatch-

intel xeon_6518p-bMatch-

intel xeon_6520pMatch-

intel xeon_6521pMatch-

intel xeon_6523p-bMatch-

intel xeon_6527pMatch-

intel xeon_6530pMatch-

intel xeon_6532p-bMatch-

intel xeon_6533p-bMatch-

intel xeon_6543p-bMatch-

intel xeon_6544p-bMatch-

intel xeon_6546p-bMatch-

intel xeon_6548p-bMatch-

intel xeon_6553p-bMatch-

intel xeon_6556p-bMatch-

intel xeon_6563p-bMatch-

intel xeon_6706p-bMatch-

intel xeon_6714pMatch-

intel xeon_6716p-bMatch-

intel xeon_6718p-bMatch-

intel xeon_6724pMatch-

intel xeon_6725pMatch-

intel xeon_6726p-bMatch-

intel xeon_6728pMatch-

intel xeon_6730pMatch-

intel xeon_6731pMatch-

intel xeon_6732pMatch-

intel xeon_6736pMatch-

intel xeon_6737pMatch-

intel xeon_6738pMatch-

intel xeon_6740pMatch-

intel xeon_6741pMatch-

intel xeon_6745pMatch-

intel xeon_6747pMatch-

intel xeon_6748pMatch-

intel xeon_6756p-bMatch-

intel xeon_6760pMatch-

intel xeon_6761pMatch-

intel xeon_6766p-bMatch-

intel xeon_6767pMatch-

intel xeon_6768pMatch-

intel xeon_6768p-bMatch-

intel xeon_6774pMatch-

intel xeon_6776pMatch-

intel xeon_6776p-bMatch-

intel xeon_6781pMatch-

intel xeon_6787pMatch-

intel xeon_6788pMatch-

intel xeon_6944pMatch-

intel xeon_6952pMatch-

intel xeon_6960pMatch-

intel xeon_6962pMatch-

intel xeon_6972pMatch-

intel xeon_6978pMatch-

intel xeon_6979pMatch-

intel xeon_6980pMatch-

Node

AND

intel tdx_moduleRange≤2.0.16

intel xeon_6503p-bMatch-

intel xeon_6513p-bMatch-

intel xeon_6516p-bMatch-

intel xeon_6518p-bMatch-

intel xeon_6523p-bMatch-

intel xeon_6532p-bMatch-

intel xeon_6533p-bMatch-

intel xeon_6543p-bMatch-

intel xeon_6544p-bMatch-

intel xeon_6546p-bMatch-

intel xeon_6548p-bMatch-

intel xeon_6553p-bMatch-

intel xeon_6556p-bMatch-

intel xeon_6563p-bMatch-

intel xeon_6706p-bMatch-

intel xeon_6716p-bMatch-

intel xeon_6718p-bMatch-

intel xeon_6726p-bMatch-

intel xeon_6756p-bMatch-

intel xeon_6766p-bMatch-

intel xeon_6768p-bMatch-

intel xeon_6776p-bMatch-

[
  {
    "vendor": "n/a",
    "product": "Intel(R) platforms",
    "versions": [
      {
        "version": "See references",
        "status": "affected"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

Source	Link
intel	www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01436.html

31 Aug 2026 14:33Current

5.8Medium risk

Vulners AI Score5.8

CVSS 3.17.2

CVSS 47

EPSS0.00147

SSVC

CWE-287