CVE-2026-70147: Microsoft PostScript Printer Driver heap overflow

CVE-2026-70147 · Severity: critical · CVSS 9.8 · Published 2026-10-13

Microsoft's PostScript Printer Driver contains a heap buffer overflow vulnerability that allows an attacker to execute malicious code remotely over the network without requiring authentication. An exploit of this flaw could lead to complete system compromise, data theft, or deployment of ransomware on affected computers.

Technologies: Microsoft PostScript Printer Driver. Vendors: Microsoft.

Quick answers

Is CVE-2026-70147 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-70147 being exploited in the wild.
How severe is CVE-2026-70147?
Critical severity, with a CVSS score of 9.8, published 13 October 2026.
Which products and versions are affected?
Microsoft PostScript Printer Driver.
Is there a fix for CVE-2026-70147?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-70147 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2026-70147?
Check whether you run Microsoft PostScript Printer Driver. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A heap-based buffer overflow exists in the Microsoft PostScript Printer Driver, allowing unauthenticated remote code execution via network access. The vulnerability requires no user interaction or special privileges, making it trivially exploitable by any network-adjacent attacker. Successful exploitation results in arbitrary code execution with system privileges.

Affected products

  • Microsoft PostScript Printer Driver

Timeline

  • 2026-10-13: disclosed

References

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