CVE-2024-36347 (GCVE-0-2024-36347)

Vulnerability from cvelistv5 – Published: 2025-06-27 22:14 – Updated: 2025-07-01 03:55
VLAI?
Summary
Improper signature verification in AMD CPU ROM microcode patch loader may allow an attacker with local administrator privilege to load malicious microcode, potentially resulting in loss of integrity of x86 instruction execution, loss of confidentiality and integrity of data in x86 CPU privileged context and compromise of SMM execution environment.
Severity ?
6.4 (Medium)
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
AMD
References
Impacted products
Vendor Product Version
AMD AMD EPYC™ 7001 Series Unaffected: NaplesPI 1.0.0.P
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    AMD AMD EPYC™ 7002 Series Unaffected: RomePI 1.0.0.L
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    AMD AMD EPYC™ 7003 Series Unaffected: MilanPI 1.0.0.F
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    AMD AMD EPYC™ 9004 Series Unaffected: Genoa 1.0.0.E
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    AMD AMD EPYC™ 4004 Series Unaffected: ComboAM5PI1.0.0.a
Unaffected: ComboAM5PI1.1.0.3c
Unaffected: ComboAM5PI1.2.0.3
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    AMD AMD EPYC™ 9005 Series Unaffected: TurinPI 1.0.0.4
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    AMD AMD Instinct™ MI300A Unaffected: MI300PI_SR5 1.0.0.8
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    AMD AMD Ryzen™ 5000 Series Desktop Processors Unaffected: ComboAM4v2PI 1.2.0.E
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    AMD AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics Unaffected: ComboAM4v2PI 1.2.0.E
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    AMD AMD Ryzen™ 3000 Series Desktop Processors Unaffected: ComboAM4PI 1.0.0.D
Unaffected: ComboAM4v2PI 1.2.0.E
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    AMD AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics Unaffected: ComboAM4PI 1.0.0.D
Unaffected: ComboAM4v2PI 1.2.0.E
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    AMD AMD Ryzen™ 7000 Series Desktop Processors Unaffected: ComboAM5PI 1.0.0.a
Unaffected: ComboAM5PI 1.1.0.3c
Unaffected: ComboAM5PI 1.2.0.3
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    AMD AMD Ryzen™ 4000 Series Desktop Processor with Radeon™ Graphics Unaffected: ComboAM4v2PI 1.2.0.E
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    AMD AMD Ryzen™ 8000 Series Processor with Radeon™ Graphics Unaffected: ComboAM5PI 1.1.0.3c
Unaffected: ComboAM5PI 1.2.0.3
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    AMD AMD Ryzen™ 9000 Series Desktop Processors Unaffected: ComboAM5PI 1.2.0.3c
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    AMD AMD Ryzen™ Threadripper™ 3000 Series Processors Unaffected: CastlePeakPI-SP3r3 1.0.0.E
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    AMD AMD Ryzen™ Threadripper™ PRO 7000 WX-Series Processors Unaffected: StormPeakPI-SP6 1.0.0.1k
Unaffected: StormPeakPI-SP6 1.1.0.0i
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    AMD AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors Unaffected: ChagallWSPI-sWRX8 1.0.0.B
Unaffected: CastlePeakWSPI-sWRX8 1.0.0.g
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    AMD AMD Ryzen™ Threadripper™ PRO 5000WX- Series Desktop Processors Unaffected: ChagallWSPI-sWRX8 1.0.0.B
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    AMD AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics Unaffected: PicassoPI-FP5 1.0.1.2b
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    AMD AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics Unaffected: PicassoPI-FP5 1.0.1.2b
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    AMD AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics Unaffected: RenoirPI-FP6 1.0.0.Eb
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    AMD AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics Unaffected: CezannePI-FP6 1.0.1.1b
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    AMD AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics Unaffected: MendocinoPI-FT6 1.0.0.7b
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    AMD AMD Ryzen™ 6000 Series Processor with Radeon™ Graphics Unaffected: RembrandtPI-FP7 1.0.0.Bb
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    AMD AMD Ryzen™ 7035 Series Processor with Radeon™ Graphics Unaffected: RembrandtPI-FP7 1.0.0.Bb
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    AMD AMD Ryzen™ 7000 Series Processors with Radeon™ Graphics Unaffected: CezannePI-FP6 1.0.1.1b
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    AMD AMD Ryzen™ 7040 Series Processors with Radeon™ Graphics Unaffected: PhoenixPI-FP8-FP7 1.2.0.0
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    AMD AMD Ryzen™ 8040 Series Mobile Processors with Radeon™ Graphics Unaffected: PhoenixPI-FP8-FP7 1.2.0.0
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    AMD AMD Ryzen™ 7045 Series Mobile Processors Unaffected: DragonRangeFL1 1.0.0.3g
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    AMD AMD Ryzen™ AI 300 Series Unaffected: StrixKrakenPI-FP8_1.1.0.0b
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    AMD AMD Ryzen™ AI Max + Unaffected: StrixHaloPI-FP11_1.0.0.1
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    AMD AMD Ryzen™ 9000HX Series Mobile Processors Unaffected: FireRangeFL1PI 1.0.0.0a
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    AMD AMD EPYC™ Embedded 3000 Unaffected: SnowyOwl PI 1.1.0.E
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    AMD AMD EPYC™ Embedded 7002 Unaffected: EmbRomePI-SP3 1.0.0.D
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    AMD AMD EPYC™ Embedded 7003 Unaffected: EmbMilan PI-SP3 1.0.0.A
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    AMD AMD EPYC™ Embedded 8004 Unaffected: EmbGenoaPI-SP5 1.0.0.9
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    AMD AMD EPYC™ Embedded 9004 Unaffected: EmbGenoaPI-SP5 1.0.0.9
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    AMD AMD EPYC™ Embedded 97X4 Unaffected: EmbGenoaPI-SP5 1.0.0.9
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    AMD AMD Ryzen™ Embedded R1000 Unaffected: EmbeddedPI-FP5 1.2.0.F
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    AMD AMD Ryzen™ Embedded R2000 Unaffected: EmbeddedR2KPI 1.0.0.5
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    AMD AMD Ryzen™ Embedded 5000 Unaffected: EmbAM4PI 1.0.0.7
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    AMD AMD Ryzen™ Embedded 7000 Unaffected: EmbeddedAM5PI 1.0.0.3
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    AMD AMD Ryzen™ Embedded V1000 Unaffected: EmbeddedPI-FP5 1.2.0.F
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    AMD AMD Ryzen™Embedded V2000 Unaffected: EmbeddedPI-FP6 1.0.0.B
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    AMD AMD Ryzen™Embedded V3000 Unaffected: EmbeddedPI-FP7R2 1.0.0.C
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            {
              "status": "unaffected",
              "version": "EmbRomePI-SP3 1.0.0.D"
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          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "EmbMilan PI-SP3 1.0.0.A"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD EPYC\u2122 Embedded 8004",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "EmbGenoaPI-SP5  1.0.0.9"
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        {
          "defaultStatus": "affected",
          "product": "AMD EPYC\u2122 Embedded 9004",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "EmbGenoaPI-SP5 1.0.0.9"
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        },
        {
          "defaultStatus": "affected",
          "product": "AMD EPYC\u2122 Embedded 97X4",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
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          "vendor": "AMD",
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            {
              "status": "unaffected",
              "version": "EmbeddedPI-FP5  1.2.0.F"
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            {
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      "datePublic": "2025-06-27T16:00:00.000Z",
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          "value": "Improper signature verification in AMD CPU ROM microcode patch loader may allow an attacker with local administrator privilege to load malicious microcode, potentially resulting in loss of integrity of x86 instruction execution, loss of confidentiality and integrity of data in x86 CPU privileged context and compromise of SMM execution environment."
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      "metrics": [
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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.