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Medium severity5.7NVD Advisory· Published Aug 13, 2024· Updated Jun 17, 2026

CVE-2021-26367

CVE-2021-26367

Description

A malicious attacker in x86 can misconfigure the Trusted Memory Regions (TMRs), which may allow the attacker to set an arbitrary address range for the TMR, potentially leading to a loss of integrity and availability.

Affected products

53
  • AMD/AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphicsv5
    Range: ComboAM4v2 PI 1.2.0.5
  • AMD/AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphicsv5
    Range: ComboAM4PI 1.0.0.9
  • AMD/AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphicsv5
    Range: ComboAM4v2 PI 1.2.0.5
  • AMD/AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphicsv5
    Range: PollockPI-FT5 1.0.0.4
  • AMD/AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphicsv5
    Range: PicassoPI-FP5 1.0.0.E
  • AMD/AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphicsv5
    Range: RenoirPI-FP6 1.0.0.7
  • AMD/AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphicsv5
    Range: CezannePI-FP6 1.0.0.6
  • AMD/AMD Ryzen™ 5000 Series Processors with Radeon™ Graphicsv5
    Range: CezannePI-FP6 1.0.0.6
  • AMD/AMD Ryzen™ 3000 Series Processors with Radeon™ Graphicsv5
    Range: CezannePI-FP6 1.0.0.6
  • AMD/AMD Radeon™ RX 6000 Series Graphics Cardsv5
    Range: AMD Software: Adrenalin Edition 23.12.1 (23.30.13.01)
  • AMD/AMD Radeon™ PRO W6000 Series Graphics Cardsv5
    Range: AMD Software: PRO Edition 23.Q4 (23.30.13.03)
  • AMD/AMD Ryzen™ Embedded R1000 Series Processorsv5
    Range: EmbeddedPI-FP5 1.2.0.A
  • AMD/AMD Ryzen™ Embedded R2000 Series Processorsv5
    Range: EmbeddedR2KPI-FP5 1.0.0.2
  • AMD/AMD Ryzen™ Embedded V1000 Series Processorsv5
    Range: EmbeddedPI-FP5 1.2.0.A
  • AMD/AMD Ryzen™ Embedded V2000 Series Processorsv5
    Range: EmbeddedPI-FP6 1.0.0.6
  • AMD/Radeon Software2 versions
    cpe:2.3:a:amd:radeon_software:*:*:*:*:adrenalin:*:*:*+ 1 more
    • cpe:2.3:a:amd:radeon_software:*:*:*:*:adrenalin:*:*:*range: <23.12.1
    • cpe:2.3:a:amd:radeon_software:*:*:*:*:pro:*:*:*range: <=23.q4
  • AMD/Ryzen 9 5980hx Firmware
    cpe:2.3:o:amd:ryzen_9_5980hx_firmware:*:*:*:*:*:*:*:*
    Range: <cezannepi-fp6_1.0.0.6
  • AMD/Ryzen 3 3200u Firmware
    cpe:2.3:o:amd:ryzen_3_3300u_firmware:*:*:*:*:*:*:*:*
    Range: <picassopi-fp5_1.0.0.e
  • AMD/Ryzen 3 3350u Firmware
    cpe:2.3:o:amd:ryzen_3_3350u_firmware:*:*:*:*:*:*:*:*
    Range: <picassopi-fp5_1.0.0.e
  • AMD/Ryzen 5 3450u Firmware
    cpe:2.3:o:amd:ryzen_5_3450u_firmware:*:*:*:*:*:*:*:*
    Range: <picassopi-fp5_1.0.0.e
  • AMD/Ryzen 5 3500u Firmware
    cpe:2.3:o:amd:ryzen_5_3500u_firmware:*:*:*:*:*:*:*:*
    Range: <picassopi-fp5_1.0.0.e
  • AMD/Ryzen 5 3500c Firmware
    cpe:2.3:o:amd:ryzen_5_3500c_firmware:*:*:*:*:*:*:*:*
    Range: <picassopi-fp5_1.0.0.e
  • AMD/Ryzen 5 3550h Firmware
    cpe:2.3:o:amd:ryzen_5_3550h_firmware:*:*:*:*:*:*:*:*
    Range: <picassopi-fp5_1.0.0.e
  • AMD/Ryzen 5 5625u Firmware
    cpe:2.3:o:amd:ryzen_5_3580u_firmware:*:*:*:*:*:*:*:*
    Range: <picassopi-fp5_1.0.0.e
  • AMD/Ryzen 3 5425u Firmware
    cpe:2.3:o:amd:ryzen_7_3700u_firmware:*:*:*:*:*:*:*:*
    Range: <picassopi-fp5_1.0.0.e
  • AMD/Ryzen 7 3700c Firmware
    cpe:2.3:o:amd:ryzen_7_3700c_firmware:*:*:*:*:*:*:*:*
    Range: <picassopi-fp5_1.0.0.e
  • AMD/Ryzen 7 3750h Firmware
    cpe:2.3:o:amd:ryzen_7_3750h_firmware:*:*:*:*:*:*:*:*
    Range: <picassopi-fp5_1.0.0.e
  • AMD/Ryzen 7 3780u Firmware
    cpe:2.3:o:amd:ryzen_7_3780u_firmware:*:*:*:*:*:*:*:*
    Range: <picassopi-fp5_1.0.0.e
  • AMD/Athlon Gold 3150c Firmware
    cpe:2.3:o:amd:athlon_gold_3150c_firmware:*:*:*:*:*:*:*:*
    Range: <picassopi-fp5_1.0.0.e
  • AMD/Athlon Gold 3150u Firmware
    cpe:2.3:o:amd:athlon_gold_3150u_firmware:*:*:*:*:*:*:*:*
    Range: <picassopi-fp5_1.0.0.e
  • AMD/Athlon Pro 3145b Firmware
    cpe:2.3:o:amd:athlon_pro_3145b_firmware:*:*:*:*:*:*:*:*
    Range: <picassopi-fp5_1.0.0.e
  • AMD/Athlon Silver 7120u Firmware
    cpe:2.3:o:amd:athlon_silver_3050c_firmware:*:*:*:*:*:*:*:*
    Range: <picassopi-fp5_1.0.0.e
  • AMD/Athlon Silver 3050u Firmware
    cpe:2.3:o:amd:athlon_silver_3050u_firmware:*:*:*:*:*:*:*:*
    Range: <picassopi-fp5_1.0.0.e
  • AMD/Athlon Pro 3045b Firmware
    cpe:2.3:o:amd:athlon_pro_3045b_firmware:*:*:*:*:*:*:*:*
    Range: <picassopi-fp5_1.0.0.e
  • AMD/Athlon Silver 3050e Firmware
    cpe:2.3:o:amd:athlon_silver_3050e_firmware:*:*:*:*:*:*:*:*
    Range: <picassopi-fp5_1.0.0.e
  • AMD/Athlon Gold Pro 3150g Firmware
    cpe:2.3:o:amd:athlon_gold_pro_3150g_firmware:*:*:*:*:*:*:*:*
    Range: <comboam4pi_1.0.0.9
  • AMD/Athlon Gold 3150g Firmware
    cpe:2.3:o:amd:athlon_gold_3150g_firmware:*:*:*:*:*:*:*:*
    Range: <comboam4pi_1.0.0.9
  • AMD/Athlon Gold Pro 3150ge Firmware
    cpe:2.3:o:amd:athlon_gold_pro_3150ge_firmware:*:*:*:*:*:*:*:*
    Range: <comboam4pi_1.0.0.9
  • AMD/Athlon Pro 300ge Firmware
    cpe:2.3:o:amd:athlon_pro_300ge_firmware:*:*:*:*:*:*:*:*
    Range: <comboam4pi_1.0.0.9
  • AMD/Ryzen 3 4300ge Firmware
    cpe:2.3:o:amd:ryzen_3_4300ge_firmware:*:*:*:*:*:*:*:*
    Range: <comboam4v2_pi_1.2.0.5
  • AMD/Ryzen 5 4600ge Firmware
    cpe:2.3:o:amd:ryzen_5_4600ge_firmware:*:*:*:*:*:*:*:*
    Range: <comboam4v2_pi_1.2.0.5
  • AMD/Ryzen 7 4700ge Firmware
    cpe:2.3:o:amd:ryzen_7_4700ge_firmware:*:*:*:*:*:*:*:*
    Range: <comboam4v2_pi_1.2.0.5
  • AMD/Ryzen 3 4300g Firmware
    cpe:2.3:o:amd:ryzen_3_4300g_firmware:*:*:*:*:*:*:*:*
    Range: <comboam4v2_pi_1.2.0.5
  • AMD/Ryzen 5 4600g Firmware
    cpe:2.3:o:amd:ryzen_5_4600g_firmware:*:*:*:*:*:*:*:*
    Range: <comboam4v2_pi_1.2.0.5
  • AMD/Ryzen 7 4700g Firmware
    cpe:2.3:o:amd:ryzen_7_4700g_firmware:*:*:*:*:*:*:*:*
    Range: <comboam4v2_pi_1.2.0.5
  • AMD/Ryzen 3 5300ge Firmware
    cpe:2.3:o:amd:ryzen_3_5300ge_firmware:*:*:*:*:*:*:*:*
    Range: <comboam4v2_pi_1.2.0.5
  • AMD/Ryzen 3 5300g Firmware
    cpe:2.3:o:amd:ryzen_3_5300g_firmware:*:*:*:*:*:*:*:*
    Range: <comboam4v2_pi_1.2.0.5
  • AMD/Ryzen 5 5600ge Firmware
    cpe:2.3:o:amd:ryzen_5_5600ge_firmware:*:*:*:*:*:*:*:*
    Range: <comboam4v2_pi_1.2.0.5
  • AMD/Ryzen 5 5600g Firmware
    cpe:2.3:o:amd:ryzen_5_5600g_firmware:*:*:*:*:*:*:*:*
    Range: <comboam4v2_pi_1.2.0.5
  • AMD/Ryzen 7 5700ge Firmware
    cpe:2.3:o:amd:ryzen_7_5700ge_firmware:*:*:*:*:*:*:*:*
    Range: <comboam4v2_pi_1.2.0.5
  • AMD/Ryzen 7 5700g Firmware
    cpe:2.3:o:amd:ryzen_7_5700g_firmware:*:*:*:*:*:*:*:*
    Range: <comboam4v2_pi_1.2.0.5
  • AMD/Trusted Memory Regionsllm-create

Patches

Vulnerability mechanics

References

2

News mentions

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