U.S. flag   An official website of the United States government
Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock (Dot gov) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database

Vulnerability Change Records for CVE-2021-26387

Change History

CVE Modified by CISA-ADP 6/16/2026 11:43:17 PM

Action Type Old Value New Value
Added SSVC 

                  
                
              		

              
                
                  
                  
                    
{"timestamp":"2024-08-14T15:47:34.441746Z","id":"CVE-2021-26387","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}

                  
                
              		
            

          
        

      

      

        

          CVE Modified by Advanced Micro Devices Inc.
            6/16/2026 11:43:17 PM
        


        

          
            

              Action
              Type
              Old Value
              New Value
            

          

          
            

              Added
              Affected

              
                
                  
                  
                    

                  
                
              		

              
                
                  
                  
                    
[{"vendor":"AMD","product":"AMD EPYC™ 7001 Series Processors","defaultStatus":"affected","packageName":"PI","versions":[{"version":"various","versionType":"PI","status":"affected"}]},{"vendor":"AMD","product":"AMD EPYC™ 7002 Series Processors","defaultStatus":"affected","versions":[{"version":"various","status":"affected"}]},{"vendor":"AMD","product":"AMD EPYC™ 7003 Series Processors","defaultStatus":"affected","versions":[{"version":"various","status":"affected"}]},{"vendor":"AMD","product":"AMD EPYC™ 9004 Series Processors","defaultStatus":"affected","versions":[{"version":"various","status":"affected"}]},{"vendor":"AMD","product":"AMD Ryzen™ 3000 Series Desktop Processors","defaultStatus":"affected","versions":[{"version":"ComboAM4PI 1.0.0.9","status":"unaffected"},{"version":"ComboAM4 V2 PI 1.2.0.8","status":"unaffected"}]},{"vendor":"AMD","product":"AMD Ryzen™ 5000 Series Desktop Processors","defaultStatus":"affected","versions":[{"version":"ComboAM4 V2 PI 1.2.0.8","status":"unaffected"}]},{"vendor":"AMD","product":"AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics","defaultStatus":"affected","versions":[{"version":"ComboAM4v2 PI 1.2.0.6","status":"unaffected"}]},{"vendor":"AMD","product":"AMD Ryzen™ 7000 Series Desktop Processors","defaultStatus":"affected","versions":[{"version":"ComboAM5 1.0.8.0","status":"unaffected"}]},{"vendor":"AMD","product":"AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics","defaultStatus":"affected","versions":[{"version":"ComboAM4PI 1.0.0.9","status":"unaffected"},{"version":"ComboAM4v2 PI 1.2.0.8","status":"unaffected"}]},{"vendor":"AMD","product":"AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics","defaultStatus":"affected","versions":[{"version":"ComboAM4v2 PI 1.2.0.5","status":"unaffected"}]},{"vendor":"AMD","product":"AMD Ryzen™ Threadripper™ 3000 Series Processors","defaultStatus":"affected","versions":[{"version":"CastlePeakPI-SP3r3  1.0.0.7","status":"unaffected"}]},{"vendor":"AMD","product":"AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors","defaultStatus":"affected","versions":[{"version":"ChagallWSPI-sWRX8 1.0.0.2","status":"unaffected"},{"version":"CastlePeakWSPI-sWRX8 1.0.0.9","status":"unaffected"}]},{"vendor":"AMD","product":"AMD Ryzen™ Threadripper™ PRO 5000WX Processors","defaultStatus":"affected","versions":[{"version":"ChagallWSPI-sWRX8 1.0.0.2","status":"unaffected"}]},{"vendor":"AMD","product":"AMD Athlon™ 3000 Series Mobile  Processors with Radeon™ Graphics","defaultStatus":"affected","versions":[{"version":"PicassoPI-FP5  1.0.0.E","status":"unaffected"}]},{"vendor":"AMD","product":"AMD Athlon™ 3000 Series Mobile  Processors with Radeon™ Graphics","defaultStatus":"affected","versions":[{"version":"PollockPI-FT5  1.0.0.4","status":"unaffected"}]},{"vendor":"AMD","product":"AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics","defaultStatus":"affected","versions":[{"version":"PicassoPI-FP5  1.0.0.E","status":"unaffected"}]},{"vendor":"AMD","product":"AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics","defaultStatus":"affected","versions":[{"version":"RenoirPI-FP6  1.0.0.8","status":"unaffected"}]},{"vendor":"AMD","product":"AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics","defaultStatus":"affected","versions":[{"version":"CezannePI-FP6 1.0.0.9","status":"unaffected"}]},{"vendor":"AMD","product":"AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics","defaultStatus":"affected","versions":[{"version":"CezannePI-FP6  1.0.0.9","status":"unaffected"}]},{"vendor":"AMD","product":"AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics","defaultStatus":"affected","versions":[{"version":"RembrandtPI-FP7 1.0.0.9b","status":"unaffected"}]},{"vendor":"AMD","product":"AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics","defaultStatus":"affected","versions":[{"version":"RembrandtPI-FP7 1.0.0.9b","status":"unaffected"}]},{"vendor":"AMD","product":"AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics","defaultStatus":"affected","versions":[{"version":"CezannePI-FP6 1.0.0.9","status":"unaffected"}]},{"vendor":"AMD","product":"AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics","defaultStatus":"affected","versions":[{"version":"CezannePI-FP6 1.0.0.9","status":"unaffected"}]},{"vendor":"AMD","product":"AMD EPYC™ Embedded 3000 Series Processors","defaultStatus":"affected","versions":[{"version":"various","status":"affected"}]},{"vendor":"AMD","product":"AMD EPYC™ Embedded 7002 Series Processors","defaultStatus":"affected","versions":[{"version":"various","status":"affected"}]},{"vendor":"AMD","product":"AMD EPYC™ Embedded 7003 Series Processors","defaultStatus":"affected","versions":[{"version":"various","status":"affected"}]},{"vendor":"AMD","product":"AMD EPYC™ Embedded 9003 Series Processors","defaultStatus":"affected","versions":[{"version":"various","status":"affected"}]},{"vendor":"AMD","product":"AMD Ryzen™ Embedded R1000 Series Processors","defaultStatus":"affected","versions":[{"version":"EmbeddedPI-FP5 1.2.0.A","status":"unaffected"}]},{"vendor":"AMD","product":"AMD Ryzen™ Embedded R2000 Series Processors","defaultStatus":"affected","versions":[{"version":"EmbeddedR2KPI-FP5 1.0.0.2","status":"unaffected"}]},{"vendor":"AMD","product":"AMD Ryzen™ Embedded 5000 Series Processors","defaultStatus":"affected","versions":[{"version":"EmbAM4PI  1.0.0.2","status":"unaffected"}]},{"vendor":"AMD","product":"AMD Ryzen™ Embedded V1000 Series Processors","defaultStatus":"affected","versions":[{"version":"EmbeddedPI-FP5 1.2.0.A","status":"unaffected"}]},{"vendor":"AMD","product":"AMD Ryzen™ Embedded V2000 Series Processors","defaultStatus":"affected","versions":[{"version":"EmbeddedPI-FP6 1.0.0.6","status":"unaffected"}]},{"vendor":"AMD","product":"AMD Ryzen™ Embedded V3000 Series Processors","defaultStatus":"affected","versions":[{"version":"EmbeddedPI-FP7r2 1.0.0.9","status":"unaffected"}]}]