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CVE-2023-20540

🗓️ 26 Jun 2026 15:44:59Reported by AMDType 
cvelist
 cvelist
🔗 www.cve.org👁 54 Views

Timing flaw enables attackers to brute-force the hash authentication code, risking data integrity.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2023-20540
26 Jun 202615:44
–attackerkb
amd
Amd
AMD Client Vulnerabilities – August 2025
12 Aug 202500:00
–amd
amd
Amd
AMD Athlon™ and AMD Ryzen™ Processor Vulnerabilities – February 2026
10 Feb 202600:00
–amd
amd
Amd
AMD Embedded Vulnerabilities – August 2025
12 Aug 202500:00
–amd
bdu_fstec
BDU FSTEC
AMD Secure Processor brute-force attack
20 Feb 202600:00
–bdu_fstec
cve
CVE
CVE-2023-20540
26 Jun 202615:44
–cve
euvd
EUVD
EUVD-2023-60597
26 Jun 202615:44
–euvd
hp
Hewlett-Packard
AMD Client UEFI Firmware August 2025 Security Update
13 Aug 202500:00
–hp
hp
Hewlett-Packard
AMD Processors February 2026 Security Update
10 Feb 202600:00
–hp
nvd
NVD
CVE-2023-20540
26 Jun 202616:16
–nvd
Rows per page
[
  {
    "vendor": "AMD",
    "product": "AMD Ryzen™ 3000 Series Desktop Processors",
    "versions": [
      {
        "status": "unaffected",
        "version": "ComboAM4  1.0.0.E"
      },
      {
        "status": "unaffected",
        "version": "ComboAM4v2PI  1.2.0.CA"
      }
    ],
    "defaultStatus": "affected"
  },
  {
    "vendor": "AMD",
    "product": "AMD Ryzen™ 5000 Series Desktop Processors",
    "versions": [
      {
        "status": "unaffected",
        "version": "ComboAM4v2PI  1.2.0.CA"
      }
    ],
    "defaultStatus": "affected"
  },
  {
    "vendor": "AMD",
    "product": "AMD Ryzen™ Threadripper™ 3000 Series Processors",
    "versions": [
      {
        "status": "unaffected",
        "version": "CastlePeakPI-SP3r3  1.0.0.C"
      }
    ],
    "defaultStatus": "affected"
  },
  {
    "vendor": "AMD",
    "product": "AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors",
    "versions": [
      {
        "status": "unaffected",
        "version": "CastlePeakWSPI-sWRX8  1.0.0.E"
      }
    ],
    "defaultStatus": "affected"
  },
  {
    "vendor": "AMD",
    "product": "AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors",
    "versions": [
      {
        "status": "unaffected",
        "version": "ChagallWSPI-sWRX8  1.0.0.9"
      }
    ],
    "defaultStatus": "affected"
  }
]

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