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#CVE-2026-45659

4 stories taggedCVE-2026-45659.

Full-frame photoreal editorial image of a dimly lit government server room, rows of racks with faint blue and amber status LEDs, one rack door slightly ajar rev
Policy & Regulation

CISA orders federal agencies to patch SharePoint flaw by Saturday as attacks begin

A newly exploited Microsoft SharePoint bug lands in CISA's Known Exploited Vulnerabilities Catalog, triggering a three-day patching clock under Binding Operational Directive 26-04.

3 min
Close-up, editorial news-photography style, of a single illuminated server rack panel in a darkened data centre, with amber and red indicator lights casting a f
Vulnerabilities

CISA: Attackers Are Actively Exploiting a Dangerous Flaw in Microsoft SharePoint

A vulnerability in SharePoint — Microsoft's widely used workplace file-sharing and collaboration platform — lets criminals run malicious code on company servers. Patches have been available since late May. Many organisations haven't applied them.

3 min
Vulnerabilities

CISA Flags SharePoint Deserialization Bug CVE-2026-45659 as Actively Exploited

The RCE flaw joins KEV with a three-week federal patch deadline. Attribution details remain thin.

2 min
Vulnerabilities

SharePoint's latest RCE bug hands attackers the keys with no extra paperwork

CVE-2026-45659 is a deserialization flaw that doesn't ask for much — and that's exactly why Microsoft is shipping fixes across every supported SharePoint Server build.

2 min
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