CVE-2020-12965

When combined with specific software sequences, AMD CPUs may transiently execute non-canonical...

7.5 High

CVE-2020-12965 is a high vulnerability (CVSS 7.5) in Amd All Supported Processors, published February 4, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.42%, the 84th percentile. No source names a fixed version.

What does this mean?

Severity: 7.5 HighCVSS 3.1, NVD
Exploit chance: 2.42%EPSS, 84th percentile
Exploitation: None knownNot on CISA’s or ENISA’s lists
Fixed in: No fix listedNo source names one

Description

When combined with specific software sequences, AMD CPUs may transiently execute non-canonical loads and store using only the lower 48 address bits potentially resulting in data leakage.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

2.42%Up 1.5 points since Feb 8, 2022

Affected products

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Affected packages

Affected packages
Package	Affected	Fixed
`spectre-meltdown-checker` openSUSE:Tumbleweed From an advisory covering 28 CVEs	before 26.36.0602723-1.1	26.36.0602723-1.1

What each source reports

NVD Score used7.5

When combined with specific software sequences, AMD CPUs may transiently execute non-canonical loads and store using only the lower 48 address bits potentially resulting in data leakage.

Record: CVE-2020-12965
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness: CWE-74
Updated: 2026-11-02

CVE ListNo score

When combined with specific software sequences, AMD CPUs may transiently execute non-canonical loads and store using only the lower 48 address bits potentially resulting in data leakage.

Record: CVE-2020-12965
Updated: 2026-11-02

EUVDEUVD-2020-5245No score

When combined with specific software sequences, AMD CPUs may transiently execute non-canonical loads and store using only the lower 48 address bits potentially resulting in data leakage.

Record: EUVD-2020-5245
Updated: 2026-11-03

GitHub AdvisoriesGHSA-wg28-p94j-5hp87.5

When combined with specific software sequences, AMD CPUs may transiently execute non-canonical...

When combined with specific software sequences, AMD CPUs may transiently execute non-canonical loads and store using only the lower 48 address bits potentially resulting in data leakage.

Record: GHSA-wg28-p94j-5hp8
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-74
Updated: 2026-11-02

OSVopenSUSE-SU-2026:11242-1No score

spectre-meltdown-checker-26.36.0602723-1.1 on GA media

These are all security issues fixed in the spectre-meltdown-checker-26.36.0602723-1.1 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2026:11242-1
Updated: 2026-11-02

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases, published	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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