Quick answers
- Is CVE-2026-70296 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-70296 being exploited in the wild.
- How severe is CVE-2026-70296?
- Critical severity, with a CVSS score of 9.8, published 8 September 2026.
- Which products and versions are affected?
- Microsoft Windows Imaging Component.
- Is there a fix for CVE-2026-70296?
- 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-2026-70296 attacked?
- It is attacked over the network, in an operating system.
- Am I affected by CVE-2026-70296?
- Check whether you run Microsoft Windows Imaging Component. 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
An out-of-bounds write vulnerability exists in Microsoft's Windows Imaging Component, a core library responsible for parsing and processing image file formats. The vulnerability allows a network-based attacker to trigger the flaw by sending a specially crafted image file, potentially without requiring authentication or user interaction. Successful exploitation results in arbitrary code execution with the privileges of the affected application or system process. The high CVSS score (9.8) reflects the low complexity of exploitation and network attack vector combined with the severe impact of remote code execution.
Affected products
- Microsoft Windows Imaging Component
Timeline
- 2026-09-08: disclosed