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NVD / CVE Program· CNA AMD

CVE-2022-23820: Failure to validate the AMD SMM communication buffer may allow an attacker to corrupt the SMRAM potentially leading to arbitrary code execut

Noroxi assessment

Priority: Monitor (action score 39/100)

  • 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: 0.69% (FIRST EPSS); higher than 53.3% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: kernel-firmware (openSUSE:Leap 15.5) 20230724-150500.3.9.1; kernel-firmware (openSUSE:Leap Micro 5.3) 20220509-150400.4.25.1; kernel-firmware (openSUSE:Tumbleweed) 20231128-1.1.
  • Severity is disputed: the assigning authority (CNA) scores it 7.5, NVD 9.8.

Low priority for now. Upgrade to kernel-firmware (openSUSE:Leap 15.5) 20230724-150500.3.9.1; kernel-firmware (openSUSE:Leap Micro 5.3) 20220509-150400.4.25.1; kernel-firmware (openSUSE:Tumbleweed) 20231128-1.1 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

Failure to validate the AMD SMM communication buffer may allow an attacker to corrupt the SMRAM potentially leading to arbitrary code execution.

CriticalCVSS 9.8 · v3.1—No exploit Fix available
Published
Nov 14, 2023
Updated
Jun 17, 2026
EPSS
0.6% · 53th percentile

Report tools

JSON

Action score

39

Monitor

Low priority for now.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.6%

CNA vs NVD score

NVD
9.8
CNA · AMD
7.5
2.3 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2022-23820

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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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
amdryzen 9 3900 firmware
amdryzen 9 3900
amdryzen 9 3900x firmware
amdryzen 9 3900x
amdryzen 9 3900xt firmware
amdryzen 9 3900xt
amdryzen 9 3950x firmware
amdryzen 9 3950x
amdryzen 7 3700x firmware
amdryzen 7 3700x
amdryzen 7 3800x firmware
amdryzen 7 3800x

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 athlon 3015ce firmwarepollockpi-ft5_1.0.0.5
  • amd athlon 3015e firmwarepollockpi-ft5_1.0.0.5
  • amd ryzen 3 3100 firmwarecomboam4_pi_1.0.0.9
  • amd ryzen 3 3100 firmwarecomboam4_v2_pi_1.2.0.8
  • amd ryzen 3 3300u firmwarepicassopi-fp5_1.0.0.e
  • amd ryzen 3 3300x firmwarecomboam4_pi_1.0.0.9
  • amd ryzen 3 3300x firmwarecomboam4_v2_pi_1.2.0.8
  • amd ryzen 3 3350u firmwarepicassopi-fp5_1.0.0.e
  • amd ryzen 3 4300u firmwarerenoirpi-fp6_1.0.0.9
  • amd ryzen 3 5100 firmwarecomboam4v2_pi_1.2.0.8
  • amd ryzen 3 5125c firmwarecezannepi-fp6_1.0.0.b
  • amd ryzen 3 5400u firmwarecezannepi-fp6_1.0.0.b
  • amd ryzen 3 5425u firmwarecezannepi-fp6_1.0.0.b
  • amd ryzen 3 7335u firmwarerembrandtpi-fp7_1.0.0.2
  • amd ryzen 5 3450u firmwarepicassopi-fp5_1.0.0.e
  • amd ryzen 5 3500 firmwarecomboam4_pi_1.0.0.9
  • amd ryzen 5 3500 firmwarecomboam4_v2_pi_1.2.0.8
  • amd ryzen 5 3500c firmwarepicassopi-fp5_1.0.0.e
  • amd ryzen 5 3500u firmwarepicassopi-fp5_1.0.0.e
  • amd ryzen 5 3500x firmwarecomboam4_pi_1.0.0.9

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 3rd Gen AMD EPYC™ Processors

    • variousaffected

  • AMD AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics “Picasso” AM4

    • variousaffected

  • AMD AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Pollock”

    • variousaffected

  • AMD AMD EPYC™ Embedded 7003

    • various, variousaffected

  • AMD AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics “Picasso” FP5

    • variousaffected

  • AMD AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics “Renoir” FP6

    • variousaffected

  • AMD AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics “Cezanne”

    • variousaffected

  • AMD AMD Ryzen™ 5000 Series Desktop Processors “Vermeer”

    • variousaffected

  • AMD AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Cezanne”

    • variousaffected

  • AMD AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne”

    • variousaffected

  • AMD AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics “Barcelo”

    • variousaffected

  • AMD AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics "Rembrandt"

    • variousaffected

Package-level exposure

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

EcosystemPackageAffected rangeFix
openSUSE:Leap 15.5kernel-firmwarebefore 20230724-150500.3.9.120230724-150500.3.9.1
openSUSE:Leap Micro 5.3kernel-firmwarebefore 20220509-150400.4.25.120220509-150400.4.25.1
openSUSE:Tumbleweedkernel-firmwarebefore 20231128-1.120231128-1.1
openSUSE:Tumbleweedkernel-firmware-ath12kbefore 20250206-1.120250206-1.1
SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSSkernel-firmwarebefore 20200107-150100.3.40.120200107-150100.3.40.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-ESPOSkernel-firmwarebefore 20210208-150300.4.19.120210208-150300.4.19.1
SUSE:Linux Enterprise Micro 5.3kernel-firmwarebefore 20220509-150400.4.25.120220509-150400.4.25.1
SUSE:Linux Enterprise Micro 5.5kernel-firmwarebefore 20230724-150500.3.9.120230724-150500.3.9.1
SUSE:Linux Enterprise Server 12 SP5kernel-firmwarebefore 20190618-5.34.120190618-5.34.1

Same product

amd: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-23821Improper access control in System Management Mode (SMM) may allow an attacker to write to SPI ROM potentially leading to arbitrary code exec
    39Monitor

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
opensuse:kernel-firmware20230724-150500.3.9.1 · openSUSE:Leap 15.5Package registry (OSV)
opensuse:kernel-firmware-ath12k20250206-1.1 · openSUSE:TumbleweedPackage registry (OSV)
suse:kernel-firmware20210208-150300.4.19.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-ESPOSPackage registry (OSV)
suse:kernel-firmware20230724-150500.3.9.1 · SUSE:Linux Enterprise Micro 5.5Package 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).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-20 · Improper Input Validation

CVSS vector

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

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.

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