Quick answers
- Is CVE-2026-45471 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-45471 being exploited in the wild.
- How severe is CVE-2026-45471?
- High severity, with a CVSS score of 7.8, published 9 June 2026.
- Which products and versions are affected?
- Microsoft Word.
- Is there a fix for CVE-2026-45471?
- 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-2026-45471 attacked?
- It is attacked with local access, in a network appliance.
- Am I affected by CVE-2026-45471?
- Check whether you run Microsoft Word. 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 vulnerability classified as an untrusted pointer dereference (CWE-822) exists within Microsoft Office Word. The flaw is triggered when the application processes a maliciously crafted document containing an invalid pointer that the application fails to properly validate. While the attack vector is local, it requires user interaction (UI:R), typically involving a victim opening a malicious file. Successful exploitation allows an attacker to execute arbitrary code with the privileges of the current user, potentially leading to full system compromise. Microsoft has released information regarding this vulnerability via their Security Update Guide.
Affected products
- Microsoft Word
Timeline
- 2026-06-09: disclosed
- 2026-06-09: advisory