7Signal Sapphire Vendor Data Vendor Patch Exists Community Data Community Notes Source Note NCSC-NL CVE-2021-4104: Not vuln ; CVE-2021-44228: Fix NCSC-NL Fix released 2021-12-14 Sources Date Attribution Description 2021-12-27 15:29:04 NCSC-NL Updated vendorPatchExists. Updated community note. Updated community note.