Adobe has patched Vulnerability-related.PatchVulnerability two critical flaws in Acrobat and Reader that warrant urgent attention . Officially , Adobe patches Vulnerability-related.PatchVulnerability security vulnerabilities around the middle of each month to coordinate with Microsoft ’ s Patch Tuesday , but recently it ’ s become almost routine for the company to issue Vulnerability-related.PatchVulnerability out-of-band updates in between . APSB19-02 , the first of such updates to reach customers in the new year , addresses Vulnerability-related.PatchVulnerability critical flaws with a priority rating of ‘ 2 ’ . That means that the flaw is potentially serious , but Adobe hasn ’ t detected Vulnerability-related.DiscoverVulnerability any real-world exploits ( the latter would entail issuing Vulnerability-related.PatchVulnerability an ‘ emergency ’ patch with a ‘ 1 ’ rating ) . The first flaw , identified Vulnerability-related.DiscoverVulnerability as CVE-2018-16011 , is described Vulnerability-related.DiscoverVulnerability by Adobe as a use-after-free bug that could be exploited Vulnerability-related.DiscoverVulnerability using a maliciously crafted PDF to take control of a target system with their malware of choice . The second , CVE-2018-16018 ( replacing CVE-2018-19725 ) , is a security bypass targeting JavaScript API restrictions on Adobe Reader DC and seems to have been in the works since before Christmas , affecting Vulnerability-related.DiscoverVulnerability all versions of Window and macOS Acrobat DC/Reader 2019.010.20064 and earlier , the fix in both cases is to update Vulnerability-related.PatchVulnerability to 2019.010.20069 . For the legacy Acrobat/Reader 2017 2017.011.30110 and Acrobat/Reader DC 2015 2015.006.30461 , the updates take those to 2017.011.30113 and 2015.006.30464 respectively . As critical flaws with a ‘ 2 ’ rating , there is a suggested 30-day window within which to apply Vulnerability-related.PatchVulnerability the updates , but it ’ s worth bearing in mind that a new round of patches will likely be offered Vulnerability-related.PatchVulnerability for Adobe products tomorrow as part of Patch Tuesday . In December ’ s Patch Tuesday , Adobe released Vulnerability-related.PatchVulnerability a not inconsiderable 87 patches , including 39 rated critical . Only days before , Adobe issued Vulnerability-related.PatchVulnerability an emergency Flash patch for a zero-day vulnerability that was being exploited Vulnerability-related.DiscoverVulnerability , while in November Flash received Vulnerability-related.PatchVulnerability a separate patch for one whose exploitation was believed to be imminent .