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-2021-47521

Change History

CVE Modified by CISA-ADP 6/17/2026 12:17:41 AM

Action Type Old Value New Value
Added SSVC 

                  
                
              		

              
                
                  
                  
                    
{"timestamp":"2024-05-29T16:55:46.664460Z","id":"CVE-2021-47521","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}

                  
                
              		
            

          
        

      

      

        

          CVE Modified by kernel.org
            6/17/2026 12:17:41 AM
        


        

          
            

              Action
              Type
              Old Value
              New Value
            

          

          
            

              Added
              Affected

              
                
                  
                  
                    

                  
                
              		

              
                
                  
                  
                    
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/net/can/sja1000/ems_pcmcia.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"fd734c6f25aea4b2b44b045e489aec67b388577e","lessThan":"cbd86110546f7f730a1f5d7de56c944a336c15c4","versionType":"git","status":"affected"},{"version":"fd734c6f25aea4b2b44b045e489aec67b388577e","lessThan":"1dd5b819f7e406dc15bbc7670596ff25261aaa2a","versionType":"git","status":"affected"},{"version":"fd734c6f25aea4b2b44b045e489aec67b388577e","lessThan":"c8718026ba287168ff9ad0ccc4f9a413062cba36","versionType":"git","status":"affected"},{"version":"fd734c6f25aea4b2b44b045e489aec67b388577e","lessThan":"ccf070183e4655824936c0f96c4a2bcca93419aa","versionType":"git","status":"affected"},{"version":"fd734c6f25aea4b2b44b045e489aec67b388577e","lessThan":"1a295fea90e1acbe80c6d4940f5ff856edcd6bec","versionType":"git","status":"affected"},{"version":"fd734c6f25aea4b2b44b045e489aec67b388577e","lessThan":"923f4dc5df679f678e121c20bf2fd70f7bf3e288","versionType":"git","status":"affected"},{"version":"fd734c6f25aea4b2b44b045e489aec67b388577e","lessThan":"474f9a8534f5f89841240a7e978bafd6e1e039ce","versionType":"git","status":"affected"},{"version":"fd734c6f25aea4b2b44b045e489aec67b388577e","lessThan":"3ec6ca6b1a8e64389f0212b5a1b0f6fed1909e45","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/net/can/sja1000/ems_pcmcia.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"3.2","status":"affected"},{"version":"0","lessThan":"3.2","versionType":"semver","status":"unaffected"},{"version":"4.4.295","lessThanOrEqual":"4.4.*","versionType":"semver","status":"unaffected"},{"version":"4.9.293","lessThanOrEqual":"4.9.*","versionType":"semver","status":"unaffected"},{"version":"4.14.258","lessThanOrEqual":"4.14.*","versionType":"semver","status":"unaffected"},{"version":"4.19.221","lessThanOrEqual":"4.19.*","versionType":"semver","status":"unaffected"},{"version":"5.4.165","lessThanOrEqual":"5.4.*","versionType":"semver","status":"unaffected"},{"version":"5.10.85","lessThanOrEqual":"5.10.*","versionType":"semver","status":"unaffected"},{"version":"5.15.8","lessThanOrEqual":"5.15.*","versionType":"semver","status":"unaffected"},{"version":"5.16","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]