Microsoft Corp. right now launched software program updates to plug at the least 570 safety holes in its Home windows working methods and different software program, nearly triple the variety of vulnerabilities the software program large mounted in its record-smashing Patch Tuesday launch final month. Microsoft attributed the burgeoning patch counts to vulnerability discoveries aided by synthetic intelligence.
Almost 60 of the bugs quashed in July’s Patch Tuesday earned a “crucial” severity ranking, which means miscreants or malware may use them to grab distant management over a Home windows system with little or no assist from the person. Microsoft additionally addressed three zero-day flaws, together with two which might be already being exploited within the wild.
Two of the zero-day weaknesses enable an attacker to raise their person rights on a Home windows system, as do roughly 250 different elevation of privilege flaws mounted this month; they embody CVE-2026-56155 — an Energetic Listing Federation Companies bug — and CVE-2026-56164, a Microsoft Sharepoint vulnerability.
CVE-2026-50661 is a safety characteristic bypass in Home windows BitLocker that might enable attackers to realize entry to encrypted knowledge if they’ve bodily entry to the system. Microsoft mentioned this bug has been detailed publicly, however that it’s not conscious of any lively exploitation.
In a weblog submit on July 9, Microsoft Government Vice President Pavan Davuluri wrote that Home windows customers will discover “a better quantity of safety updates included in every safety launch” on account of AI aiding within the discovery of vulnerabilities.
“The tempo of vulnerability discovery is altering with advances in AI making it attainable to seek out extra points, quicker, throughout extra code, with new mechanisms that may speed up each discovery and evaluation,” Davuluri wrote.
Jack Bicer, director of vulnerability analysis at Action1, known as consideration to CVE-2026-48561, a distant code execution flaw in Microsoft Copilot (with a 9.6 CVSS menace rating) that permits an unauthorized attacker to execute code over the community. Microsoft says an attacker may exploit this bug by internet hosting a malicious web site that causes Microsoft Edge for Android to routinely ship crafted prompts to Copilot when a person visits the location.
As AI advances the state of vulnerability discovery and remediation, it’s also making it simpler for attackers to shortly devise working exploits for recognized software program flaws. Microsoft has lengthy labeled safety bugs utilizing its “exploitability index,” which is Redmond’s finest guess as to how probably it’s that attackers will be capable to work out a dependable solution to exploit a given vulnerability.
However Satnam Narang, senior workers analysis engineer at Tenable, argues that Microsoft’s exploitability index must do a greater job of shifting with the machine pace of discovery. For instance, Microsoft initially gave this month’s SharePoint zero-day an exploitability ranking of “much less probably,” though the flaw was added to CISA’s Recognized Exploited Vulnerabilities checklist on July 1.
“Anthropic’s Purple Crew’s personal findings for recognized vulnerabilities (n-days) revealed how fragile this method has change into, with its Mythos Preview mannequin having the ability to produce proof-of-concept exploits for 13 of 14 vulnerabilities that have been rated ‘Exploitation Much less Probably’ or ‘Exploitation Unlikely,’” Narang mentioned. “What this implies is that our method of Patch Tuesday has modified, as a result of the exploitability index is centered round people, not AI instruments, and as these instruments proceed to enhance, protection wants to enhance alongside it.”
Chris Goettl at Ivanti noticed that the document patch numbers from Microsoft come as a variety of different main software program makers are rising their patch cadence, together with Adobe which introduced right now it’s transferring to twice-monthly safety bulletins revealed on the 2nd and 4th Tuesday of every month (Adobe additionally cited AI for accelerating their patch cycles). Cisco, Mozilla and Oracle are also transport updates extra ceaselessly, whereas Google’s patch batches in June 2026 totaled greater than 900 safety fixes, Goettl famous.
Backing up your Home windows system and/or knowledge is at all times a good suggestion earlier than making use of working system updates. Given the amount of patches addressed this month it could be clever for finish customers to attend a number of days earlier than making use of these fixes. It’s not unusual for safety patches to introduce system stability points, and people possibilities most likely enhance fairly a bit with the big patch depend launched right now.
Additional studying:
Action1’s Patch Tuesday weblog
Automox’s rundown
