The August 2026 Security Update Review

I’ve successfully survived Hacker Summer Camp, and I have returned with a new outlook on patch density. When even Linus Torvalds says that huge updates are the “new normal”, it’s time to readjust what we consider a true bug apocalypse. This month’s release is thankfully smaller than last months, but still huge by historical standards. Take a break from your regularly scheduled activities as we let’s take a look at the latest security patches from Adobe and Microsoft. If you’d rather watch the full video recap covering the entire release, you can check out the Patch Report webcast on our YouTube channel. It should be posted within a couple of hours after the release.Adobe Patches for August 2026For the first part of the August release, Adobe released five bulletins addressing 51 unique CVEs in Adobe ColdFusion, Commerce, Lightroom Classic, Content Credentials SDK, and Adobe Campaign Classic.Here’s this month’s overview table: Adobe Patches for August 2026 Adobe Patches for August 2026 Bulletin ID Product CVE Count Highest Severity Highest CVSS Exploited Deployment Priority APSB26-90 Adobe ColdFusion 15 Critical 10.0 No 1 APSB26-123 Adobe Campaign Classic 3 Critical 10.0 No 1 APSB26-92 Adobe Commerce 7 Critical 9.1 No 2 APSB26-94 Adobe Lightroom Classic 11 Critical 8.6 No 3 APSB26-111 Content Credentials SDK 15 Critical 7.5 No 3 TOTAL 5 bulletins 51 If you’re running Campaign Classic, that’s your priority. Not only is it a deployment priority of 1, but it also contains two different CVSS 10 bugs and supersedes the patch that was just released on August 3. ColdFusion is also deployment priority 1 and also contains a CVSS 10 bug. Adobe Commerce rates a priority 2 with code execution bugs as high as CVSS 9.1. The patches for Lightroom Classic and Content Credentials SDK are packed with CVEs, but only rate a deployment priority of 3.None of the Adobe bugs receiving patches this month are listed as publicly known or under active attack at the time of release.Microsoft Patches for August 2026There are a couple of things to point out right at the beginning. Again, counting is difficult due to the size, but I see 398 new CVEs to go along with the other updates documented this month. However, there is only one listed being under active attack, so we’ve got that going for us, which is nice. The release impacts Windows and Windows components, Office and Office Components, AMD Zen, Azure and Azure Components, GitHub Copilot, Windows Defender, Exchange Server, SharePoint, OneDrive for macOS, Teams, Power BI, .NET and Visual Studio, DHCP Server and Client, DNS Server, and Windows TPM. Minecraft is absent from this release.  All told, there are 62 rated Critical, one rated Moderate, with the rest rated Important in severity. Eight of these bugs were submitted through the ZDI program.This volume of updates indeed seems to be the new normal – at least for now. What is interesting is that, while there is an explosion of bugs being reported (and fixed), there has been no equivalent increase in the number of bugs being actively exploited, at least as 0-days.Again, we’ll start with the bug under active attack and move on from there. -              CVE-2026-68820 - Windows Ancillary Function Driver for WinSock Elevation of Privilege VulnerabilityThis bug allows attackers to execute code at SYSTEM level. Bugs of this type are often paired with code execution bugs to take over a system, often through phishing or ransomware. One nitpick here: Microsoft lists the Exploit Code Maturity in the CVSS as “Unproven” but calls this out as actively exploited. Somewhere, that math ain’t mathing.-              CVE-2026-62878 - Windows DNS Server Remote Code Execution VulnerabilityThere are several DNS-related patches this month, but this one stands out by far. It allows a remote, unauthenticated attacker to execute code with elevated privileges without user interaction. It’s a good ol’ fashioned stack-based buffer overflow that ends up wormable. Microsoft states exploitation is less likely, but I wouldn’t count on that. I suggest testing and deploying this one quickly, especially to your Internet-facing DNS servers. -              CVE-2026-62893 - Windows Deployment Services TFTP Server Remote Code Execution VulnerabilityThis bug came through the ZDI program and allows for code execution without user authentication or user interaction. TFTP has no auth mechanism and is available remotely vid UDP port 69. Any WDS server serving Windows Imaging Format (WIM) files via TFTP (the standard PXE boot scenario) is vulnerable. The issue results from the lack of validating the existence of an object prior to performing operations on the object. UDP port 69 should be blocked at your perimeter, but this could easily be used by attackers for lateral movemen