CVE detail
CVE-2026-45584
Heap-based buffer overflow in Microsoft Defender allows an unauthorized attacker to execute code over a network.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 16.1 · diversity 16.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
4 source links · newest first
In the Security Updates table, added links to the Release Notes. This is an informational change only.
vendormsrc.microsoft.comMay 26, 2026, 2:00 PMMicrosoft released emergency fixes for two zero-day vulnerabilities in the malware protection components of Microsoft Defender. The flaws allow local attackers to gain system-level privileges or cause the anti-malware service to stop working correctly. Both conditions are valuable in a malware attack, first to prevent detection if the system relies only on Microsoft endpoint protection […]
newswww.csoonline.comMay 21, 2026, 10:05 PMLinked URL: https://xeiaso.net/shitposts/no-way-to-prevent-this/CVE-2026-45584/ | Posted by speckx | 7 points | 0 comments
communitynews.ycombinator.comMay 21, 2026, 6:27 PM- Microsoft Defender vulnerabilities exploited in the wild (CVE-2026-41091, CVE-2026-45498)Help Net Security
Attackers are exploiting two Microsoft Defender vulnerabilities (CVE-2026-41091 and CVE-2026-45498), Microsoft acknowledged and CISA confirmed by adding them to its Known Exploited Vulnerabilities catalog. The vulnerabilities CVE-2026-41091 allows for local privilege elevation (LPE), and is caused by the Microsoft Malware Protection Engine improperly resolving links before accessing files. “An attacker who successfully exploited this vulnerability could gain SYSTEM privileges,” Microsoft noted. CVE-2026-45498 can cause a denial-of-service (DoS) state, i.e., it can be used to prevent … More →
newswww.helpnetsecurity.comMay 21, 2026, 10:57 AM
Exploit code
Public exploit repository references
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0 repository references · best confidence N/A · max 0 stars
Related records
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