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December 2021 · Band 1

Exploited in the wild

15 CVEs · 15 exploited

Each square is a CVE listed by CISA as exploited. The named ones are the most likely to be exploited again.

exploited in the wild
15

Every one of the 15 is a mark on the map. Named now: 1 to 15, most at risk first.

  1. Apache Log4j2 Remote Code InjectionCVE-2021-44228Apache Software Foundation · CVSS 10 · 100% likely

    CWE-502ApacheAPT35APT419 bounty reports

  2. Apache Log4j2 - Remote Code InjectionCVE-2021-45046Apache Software Foundation · CVSS 9 · 100% likely

    CWE-917Apache

  3. SonicWall SMA100 Stack - Buffer Overflow/Remote Code ExecutionCVE-2021-20038SonicWall · CVSS 9.8 · 100% likely

    CWE-121SonicWall

  4. Zoho ManageEngine Desktop Central - Remote Code ExecutionCVE-2021-44515Zoho · CVSS 9.8 · 100% likely

    Zoho (ManageEngine)

  5. VMWare Workspace ONE UEM - Server-Side Request ForgeryCVE-2021-22054Omnissa · CVSS 7.5 · 100% likelycovered by CyberSIXT

    CWE-918Omnissa

  6. Ivanti EPM Cloud Services Appliance Code InjectionCVE-2021-44529Ivanti · CVSS 9.8 · 99% likely

    CWE-94Ivanti1 bounty report

  7. Grafana v8.x - Arbitrary File ReadCVE-2021-43798grafana · CVSS 7.5 · 89% likely

    CWE-22Grafana

  8. Deserialization of Untrusted DataCVE-2021-23758Ajax.NET Professional · CVSS 8.1 · 83% likelycovered by CyberSIXT

    CWE-502Ajax.NET Professional7 articles

  9. Arbitrary file upload vulnerability in FatPipe softwareCVE-2021-27860FatPipe · CVSS 9.8 · 40% likely

    CWE-434FatPipe

  10. An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.5 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.…CVE-2021-39935GitLab · CVSS 6.8 · 36% likelycovered by CyberSIXT

    CWE-918GitLab

  11. Acclaim USAHERDS through 7.4.0.1 uses hard-coded credentials.CVE-2021-44207Acclaim Systems · CVSS 8.1 · 17% likely

    CWE-798Acclaim SystemsAPT41

  12. Windows AppX Installer Spoofing VulnerabilityCVE-2021-43890Microsoft · CVSS 7.1 · 11% likely

    Microsoft

  13. Windows Common Log File System Driver Elevation of Privilege VulnerabilityCVE-2021-43226Microsoft · CVSS 7.8 · 3.3% likely

    Microsoft

  14. In ep_loop_check_proc of eventpoll.c, there is a possible way to corrupt memory due to a use after free. This could lead to local escalation of privilege with no additional execut…CVE-2021-1048Android · CVSS 7.8 · 1.1% likely

    CWE-416Android

  15. In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges…CVE-2021-0920Android · CVSS 6.4 · 0.9% likely

    CWE-416Android

exploited in the wildcheck availableringed, named or not: CyberSIXT has reported on it

Zoom in on the map and the dots under the middle of it are named where they are.

Data as of 2026-11-15. CVE List through 2026-11-15 · EPSS of 2026-11-14 · CISA KEV checked 2026-11-15. Sources: the CVE List, CISA KEV, EPSS, NVD, nuclei templates and public bug bounty data.