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NVD / CVE Program· CNA AMD

CVE-2022-27672: When SMT is enabled, certain AMD processors may speculatively execute instructions using a target from the sibling thread after an SMT mode

Noroxi assessment

Priority: Monitor (action score 18/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.28% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: xen (Alpine:v3.16) 4.16.4-r0; xen (Alpine:v3.18) 4.17.0-r2; linux (Debian:12) 6.1.12-1.
  • Mentioned 3 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to xen (Alpine:v3.16) 4.16.4-r0; xen (Alpine:v3.18) 4.17.0-r2; linux (Debian:12) 6.1.12-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

When SMT is enabled, certain AMD processors may speculatively execute instructions using a target from the sibling thread after an SMT mode switch potentially resulting in information disclosure.

MediumCVSS 4.7 · v3.1—No exploit Fix available
Published
Mar 1, 2023
Updated
Jun 17, 2026
EPSS
0.2% · 20th percentile
CWE
—

Report tools

JSON

Action score

18

Monitor

Low priority for now.

CVSS
18 / 40 · 4.7 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
amdathlon x4 750 firmware
amdathlon x4 750
amdathlon x4 760k firmware
amdathlon x4 760k
amdathlon x4 830 firmware
amdathlon x4 830
amdathlon x4 840 firmware
amdathlon x4 840
amdathlon x4 860k firmware
amdathlon x4 860k
amdathlon x4 870k firmware
amdathlon x4 870k

and 188 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • amd a10-9600p firmwareall versions
  • amd a10-9630p firmwareall versions
  • amd a12-9700p firmwareall versions
  • amd a12-9730p firmwareall versions
  • amd a4-9120 firmwareall versions
  • amd a4-9120c firmwareall versions
  • amd a6-9210 firmwareall versions
  • amd a6-9220 firmwareall versions
  • amd a6-9220c firmwareall versions
  • amd a9-9410 firmwareall versions
  • amd a9-9420 firmwareall versions
  • amd athlon gold 3150c firmwareall versions
  • amd athlon gold 3150u firmwareall versions
  • amd athlon gold 7220u firmwareall versions
  • amd athlon pro 300u firmwareall versions
  • amd athlon pro 3045b firmwareall versions
  • amd athlon pro 3145b firmwareall versions
  • amd athlon silver 3050c firmwareall versions
  • amd athlon silver 3050e firmwareall versions
  • amd athlon silver 3050u firmwareall versions

Versions reported by the vendor

Affected version ranges reported by the assigning authority (AMD). Independent of NVD's CPE analysis and usually ahead of it.

  • AMD 1st Gen AMD EPYC™ Processors

    • Contact your OS vendoraffected

  • AMD 2nd Gen AMD EPYC™ Processors

    • Contact your OS vendoraffected

  • AMD 2nd Gen AMD Ryzen™ Threadripper™ Processors

    • Contact your OS vendoraffected

  • AMD 3rd Gen AMD Ryzen™ Threadripper™ Processors

    • Contact your OS vendoraffected

  • AMD 7th Generation AMD A-Series APUs

    • Contact your OS vendoraffected

  • AMD Athlon™ Mobile Processors

    • Contact your OS vendoraffected

  • AMD Athlon™ X4 Processor

    • Contact your OS vendoraffected

  • AMD Ryzen™ 2000 Series Processors

    • Contact your OS vendoraffected

  • AMD Ryzen™ 3000 Series Processors

    • Contact your OS vendoraffected

  • AMD Ryzen™ 4000 Series Processors

    • Contact your OS vendoraffected

  • AMD Ryzen™ 5000 Series Processors

    • Contact your OS vendoraffected

  • AMD Ryzen™ Threadripper™ PRO Processor

    • Contact your OS vendoraffected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Alpine:v3.16xenbefore 4.16.4-r04.16.4-r0
Alpine:v3.18xenbefore 4.17.0-r24.17.0-r2
Debian:12linuxbefore 6.1.12-16.1.12-1
Debian:12xenbefore 4.17.0+46-gaaf74a532c-14.17.0+46-gaaf74a532c-1
openSUSE:Leap Micro 5.3xenbefore 4.16.3_04-150400.4.22.14.16.3_04-150400.4.22.1
openSUSE:Tumbleweedxenbefore 4.17.0_04-3.14.17.0_04-3.1
Red Hat:rhel_eus:9.2::appstreambpftool-debuginfobefore 0:7.0.0-284.40.1.el9_20:7.0.0-284.40.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-64k-debug-debuginfobefore 0:5.14.0-284.40.1.el9_20:5.14.0-284.40.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-64k-debug-develbefore 0:5.14.0-284.40.1.el9_20:5.14.0-284.40.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-64k-debug-devel-matchedbefore 0:5.14.0-284.40.1.el9_20:5.14.0-284.40.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-64k-debuginfobefore 0:5.14.0-284.40.1.el9_20:5.14.0-284.40.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-64k-develbefore 0:5.14.0-284.40.1.el9_20:5.14.0-284.40.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-64k-devel-matchedbefore 0:5.14.0-284.40.1.el9_20:5.14.0-284.40.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-debug-debuginfobefore 0:5.14.0-284.40.1.el9_20:5.14.0-284.40.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-debug-develbefore 0:5.14.0-284.40.1.el9_20:5.14.0-284.40.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-debug-devel-matchedbefore 0:5.14.0-284.40.1.el9_20:5.14.0-284.40.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-debuginfobefore 0:5.14.0-284.40.1.el9_20:5.14.0-284.40.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-debuginfo-common-aarch64before 0:5.14.0-284.40.1.el9_20:5.14.0-284.40.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-debuginfo-common-ppc64lebefore 0:5.14.0-284.40.1.el9_20:5.14.0-284.40.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-debuginfo-common-s390xbefore 0:5.14.0-284.40.1.el9_20:5.14.0-284.40.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-debuginfo-common-x86_64before 0:5.14.0-284.40.1.el9_20:5.14.0-284.40.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-develbefore 0:5.14.0-284.40.1.el9_20:5.14.0-284.40.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-devel-matchedbefore 0:5.14.0-284.40.1.el9_20:5.14.0-284.40.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-docbefore 0:5.14.0-284.40.1.el9_20:5.14.0-284.40.1.el9_2

+59

Same product

amd: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-23825Aliases in the branch predictor may cause some AMD processors to predict the wrong branch type potentially leading to information disclosure
    26Monitor
  • CVE-2022-23823A potential vulnerability in some AMD processors using frequency scaling may allow an authenticated attacker to execute a timing attack to p
    26Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
alpine:xen4.16.4-r0 · Alpine:v3.16Package registry (OSV)
debian:linux6.1.12-1 · Debian:12Package registry (OSV)
debian:xen4.17.0+46-gaaf74a532c-1 · Debian:12Package registry (OSV)
opensuse:xen4.16.3_04-150400.4.22.1 · openSUSE:Leap Micro 5.3Package registry (OSV)
red hat:bpftool-debuginfo0:7.0.0-284.40.1.el9_2 · Red Hat:rhel_eus:9.2::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-debuginfo0:5.14.0-284.40.1.el9_2 · Red Hat:rhel_eus:9.2::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel0:5.14.0-284.40.1.el9_2 · Red Hat:rhel_eus:9.2::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel-matched0:5.14.0-284.40.1.el9_2 · Red Hat:rhel_eus:9.2::appstreamPackage registry (OSV)
red hat:kernel-64k-debuginfo0:5.14.0-284.40.1.el9_2 · Red Hat:rhel_eus:9.2::appstreamPackage registry (OSV)
red hat:kernel-64k-devel0:5.14.0-284.40.1.el9_2 · Red Hat:rhel_eus:9.2::appstreamPackage registry (OSV)
red hat:kernel-64k-devel-matched0:5.14.0-284.40.1.el9_2 · Red Hat:rhel_eus:9.2::appstreamPackage registry (OSV)
red hat:kernel-debug-debuginfo0:5.14.0-284.40.1.el9_2 · Red Hat:rhel_eus:9.2::appstreamPackage registry (OSV)
red hat:kernel-debug-devel0:5.14.0-284.40.1.el9_2 · Red Hat:rhel_eus:9.2::appstreamPackage registry (OSV)
red hat:kernel-debug-devel-matched0:5.14.0-284.40.1.el9_2 · Red Hat:rhel_eus:9.2::appstreamPackage registry (OSV)
red hat:kernel-debuginfo0:5.14.0-284.40.1.el9_2 · Red Hat:rhel_eus:9.2::appstreamPackage registry (OSV)
red hat:kernel-debuginfo-common-aarch640:5.14.0-284.40.1.el9_2 · Red Hat:rhel_eus:9.2::appstreamPackage registry (OSV)
suse:xen4.16.3_04-150400.4.22.1 · SUSE:Linux Enterprise Micro 5.3Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none
Attack vector
Local
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records