Ghostscript flaw lets hackers hijack servers via PDF uploads
A critical heap buffer overflow vulnerability (CVE-2026-39919) in the Ghostscript interpreter and rendering engine could allow remote code execution through specially crafted PDF files.
Excerpt from the primary source: BleepingComputer
Who is affected
Security professionals
What you should do · Review
Review whether your organization uses the affected products and assess exposure using the linked advisories.
Automated guidance based on this story's classification. Check the linked advisories for specifics.
Sources
We link to original and authoritative sources. Headlines and excerpts belong to their publishers.
Original reporting
Related
Microsoft Patch Tuesday for October 2026 — Snort rules and prominent vulnerabilities
Blog post covering the vulnerabilities disclosed during Microsoft Patch Tuesday.
Microsoft October 2026 Patch Tuesday fixes 1,411 flaws, 3 zero-days
Today is Microsoft's October 2026 Patch Tuesday, with security updates addressing a record-breaking 1,411 flaws, including one actively exploited and two publicly disclosed zero-day vulnerabilities.
Source reporting says attackers are already exploiting this, so exposed affected systems are at immediate risk.
Treat this as an emergency.
Microsoft releases Windows 10 KB5126657 extended security update
Microsoft released the Windows 10 KB5126657 extended security update, which includes this month's record-breaking October 2026 Patch Tuesday fixes and a few bug fixes and changes.
October 2026 Microsoft Patch Tuesday, (Tue, Oct 13th)
Microsoft today released patches for 1,417 vulnerabilities. 76 of these vulnerabilities are rated critical, with 7 critical vulnerabiilties requiring no customer actions. One vulnerability was disclosed before today's patch Tuesday, and one is already exploited.