CVE catalog

CVE-2026-20716

Improper access control for some Intel(R) Processors…

Improper access control for some Intel(R) Processors within Ring 3: User Applications may allow an escalation of privilege. Simple hardware adversary with an authenticated user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

Severity: High · CVSS 7.2CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published: Aug 11, 2026, 5:17:49 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.09% · Oct 27, 2026

Projects and upstream resources

[intel-ucode][Source-reported homepage]

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Distribution / release	Package	Version	Status	Source
Alpine3.24	intel-ucode	`20260812-r0`	Fixed	[ALPINE-CVE-2026-20716]Oct 1, 2026, 2:17:49 AM UTC
Alpine3.23	intel-ucode	`20260812-r0`	Fixed	[ALPINE-CVE-2026-20716]Oct 1, 2026, 2:17:49 AM UTC
Alpine3.22	intel-ucode	`20260812-r0`	Fixed	[ALPINE-CVE-2026-20716]Oct 1, 2026, 2:17:49 AM UTC
Alpine3.21	intel-ucode	`20260812-r0`	Fixed	[ALPINE-CVE-2026-20716]Oct 1, 2026, 2:17:49 AM UTC

Showing 4 fix observations. All 14 observations, including unknown and conflicting reports, are available below.

Provider details and historical evidence

Distribution / release	Package	Version	Status	Source
Alpine3.21	intel-ucode	`20260812-r0`	Fixed	[ALPINE-CVE-2026-20716]Oct 1, 2026, 2:17:49 AM UTC
Alpine3.22	intel-ucode	`20260812-r0`	Fixed	[ALPINE-CVE-2026-20716]Oct 1, 2026, 2:17:49 AM UTC
Alpine3.23	intel-ucode	`20260812-r0`	Fixed	[ALPINE-CVE-2026-20716]Oct 1, 2026, 2:17:49 AM UTC
Alpine3.24	intel-ucode	`20260812-r0`	Fixed	[ALPINE-CVE-2026-20716]Oct 1, 2026, 2:17:49 AM UTC
Debianbookworm	intel-microcode	Not reported	AffectedDistribution reports no fix	[CVE-2026-20716]
Debianbookworm	intel-microcode	`3.20251111.1~deb12u1`	Affected	[CVE-2026-20716]
Debianbookworm-security	intel-microcode	`3.20250812.1~deb12u1`	Affected	[CVE-2026-20716]
Debianforky	intel-microcode	Not reported	AffectedDistribution reports no fix	[CVE-2026-20716]
Debianforky	intel-microcode	`3.20260227.1`	Affected	[CVE-2026-20716]
Debiansid	intel-microcode	Not reported	AffectedDistribution reports no fix	[CVE-2026-20716]
Debiansid	intel-microcode	`3.20260227.1`	Affected	[CVE-2026-20716]
Debiantrixie	intel-microcode	Not reported	AffectedDistribution reports no fix	[CVE-2026-20716]
Debiantrixie	intel-microcode	`3.20251111.1~deb13u1`	Affected	[CVE-2026-20716]
Debiantrixie-security	intel-microcode	`3.20250812.1~deb13u1`	Affected	[CVE-2026-20716]

Original provider fields

{
  "package_releases": [
    {
      "name": "intel-microcode",
      "status": "vulnerable",
      "release": "sid",
      "version": "3.20260227.1"
    },
    {
      "name": "intel-microcode",
      "status": "vulnerable",
      "release": "forky",
      "version": "3.20260227.1"
    },
    {
      "name": "intel-microcode",
      "status": "vulnerable",
      "release": "trixie",
      "version": "3.20251111.1~deb13u1"
    },
    {
      "name": "intel-microcode",
      "status": "vulnerable",
      "release": "trixie-security",
      "version": "3.20250812.1~deb13u1"
    },
    {
      "name": "intel-microcode",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "3.20251111.1~deb12u1"
    },
    {
      "name": "intel-microcode",
      "status": "vulnerable",
      "release": "bookworm-security",
      "version": "3.20250812.1~deb12u1"
    }
  ],
  "fixed_versions": [
    {
      "bug": 1144158,
      "name": "intel-microcode",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": ""
    },
    {
      "bug": 1144158,
      "name": "intel-microcode",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": ""
    },
    {
      "bug": 1144158,
      "name": "intel-microcode",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": ""
    },
    {
      "bug": 1144158,
      "name": "intel-microcode",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": ""
    }
  ],
  "distribution_packages": [
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      "fixed_version": "",
      "provider_source": "nvd",
      "provider_record_id": "NVD-CVE-2026-20716",
      "provider_updated_at": "2026-08-31T14:10:11.397"
    },
    {
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    },
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    },
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    },
    {
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      "provider_source": "nvd",
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      "provider_updated_at": "2026-08-31T14:10:11.397"
    },
    {
      "name": "xeon_674x_firmware",
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      "provider_updated_at": "2026-08-31T14:10:11.397"
    },
    {
      "name": "xeon_676x_firmware",
      "ranges": [],
      "ecosystem": "cpe",
      "provider_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20716",
      "fixed_version": "",
      "provider_source": "nvd",
      "provider_record_id": "NVD-CVE-2026-20716",
      "provider_updated_at": "2026-08-31T14:10:11.397"
    },
    {
      "name": "xeon_678x_firmware",
      "ranges": [],
      "ecosystem": "cpe",
      "provider_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20716",
      "fixed_version": "",
      "provider_source": "nvd",
      "provider_record_id": "NVD-CVE-2026-20716",
      "provider_updated_at": "2026-08-31T14:10:11.397"
    },
    {
      "name": "xeon_696x_firmware",
      "ranges": [],
      "ecosystem": "cpe",
      "provider_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20716",
      "fixed_version": "",
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      "provider_record_id": "NVD-CVE-2026-20716",
      "provider_updated_at": "2026-08-31T14:10:11.397"
    },
    {
      "name": "xeon_698x_firmware",
      "ranges": [],
      "ecosystem": "cpe",
      "provider_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20716",
      "fixed_version": "",
      "provider_source": "nvd",
      "provider_record_id": "NVD-CVE-2026-20716",
      "provider_updated_at": "2026-08-31T14:10:11.397"
    },
    {
      "name": "xeon_6315p_firmware",
      "ranges": [],
      "ecosystem": "cpe",
      "provider_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20716",
      "fixed_version": "",
      "provider_source": "nvd",
      "provider_record_id": "NVD-CVE-2026-20716",
      "provider_updated_at": "2026-08-31T14:10:11.397"
    },
    {
      "name": "xeon_6325p_firmware",
      "ranges": [],
      "ecosystem": "cpe",
      "provider_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20716",
      "fixed_version": "",
      "provider_source": "nvd",
      "provider_record_id": "NVD-CVE-2026-20716",
      "provider_updated_at": "2026-08-31T14:10:11.397"
    },
    {
      "name": "xeon_6333p_firmware",
      "ranges": [],
      "ecosystem": "cpe",
      "provider_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20716",
      "fixed_version": "",
      "provider_source": "nvd",
      "provider_record_id": "NVD-CVE-2026-20716",
      "provider_updated_at": "2026-08-31T14:10:11.397"
    },
    {
      "name": "xeon_6337p_firmware",
      "ranges": [],
      "ecosystem": "cpe",
      "provider_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20716",
      "fixed_version": "",
      "provider_source": "nvd",
      "provider_record_id": "NVD-CVE-2026-20716",
      "provider_updated_at": "2026-08-31T14:10:11.397"
    },
    {
      "name": "xeon_6349p_firmware",
      "ranges": [],
      "ecosystem": "cpe",
      "provider_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20716",
      "fixed_version": "",
      "provider_source": "nvd",
      "provider_record_id": "NVD-CVE-2026-20716",
      "provider_updated_at": "2026-08-31T14:10:11.397"
    },
    {
      "name": "xeon_6353p_firmware",
      "ranges": [],
      "ecosystem": "cpe",
      "provider_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20716",
      "fixed_version": "",
      "provider_source": "nvd",
      "provider_record_id": "NVD-CVE-2026-20716",
      "provider_updated_at": "2026-08-31T14:10:11.397"
    },
    {
      "name": "xeon_6357p_firmware",
      "ranges": [],
      "ecosystem": "cpe",
      "provider_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20716",
      "fixed_version": "",
      "provider_source": "nvd",
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      "provider_updated_at": "2026-08-31T14:10:11.397"
    },
    {
      "name": "xeon_6369p_firmware",
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      "ecosystem": "cpe",
      "provider_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20716",
      "fixed_version": "",
      "provider_source": "nvd",
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      "provider_updated_at": "2026-08-31T14:10:11.397"
    },
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      "name": "xeon_6377p_firmware",
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      "provider_updated_at": "2026-08-31T14:10:11.397"
    },
    {
      "name": "intel-ucode",
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          "type": "ECOSYSTEM",
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            },
            {
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            }
          ]
        }
      ],
      "release": "3.21",
      "versions": [],
      "ecosystem": "apk",
      "provider_url": "https://osv.dev/vulnerability/ALPINE-CVE-2026-20716",
      "fixed_version": "20260812-r0",
      "provider_source": "pypi",
      "provider_record_id": "ALPINE-CVE-2026-20716",
      "provider_updated_at": "2026-10-01T02:17:49.202394931Z"
    },
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      "name": "intel-ucode",
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            },
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            }
          ]
        }
      ],
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      "provider_source": "pypi",
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      "provider_updated_at": "2026-10-01T02:17:49.202394931Z"
    },
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            }
          ]
        }
      ],
      "release": "3.23",
      "versions": [],
      "ecosystem": "apk",
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      "fixed_version": "20260812-r0",
      "provider_source": "pypi",
      "provider_record_id": "ALPINE-CVE-2026-20716",
      "provider_updated_at": "2026-10-01T02:17:49.202394931Z"
    },
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      "ranges": [
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            }
          ]
        }
      ],
      "release": "3.24",
      "versions": [],
      "ecosystem": "apk",
      "provider_url": "https://osv.dev/vulnerability/ALPINE-CVE-2026-20716",
      "fixed_version": "20260812-r0",
      "provider_source": "pypi",
      "provider_record_id": "ALPINE-CVE-2026-20716",
      "provider_updated_at": "2026-10-01T02:17:49.202394931Z"
    }
  ]
}

[Debian bug #1144158]

Publisher notes

[trixie] intel-microcode: As usual fixed top-down, expose first in unstable, then likely point release [bookworm] intel-microcode: As usual fixed top-down, expose first in unstable, then likely point release

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[intel-microcode]Unknown
Details (1)
- 3.20251111.1~deb12u1 · amd64 · bookworm
  Affected
  nvd · intel-microcode · debian · bookworm; nvd · intel-microcode · debian · 12

[Debian 13 (Trixie)]

[intel-microcode]Unknown
Details (1)
- 3.20251111.1~deb13u1 · amd64 · trixie
  Affected
  nvd · intel-microcode · debian · 13

Observed: Oct 23, 2026, 9:42:14 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]