Quick answers
- Is CVE-2026-69325 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-69325 being exploited in the wild.
- How severe is CVE-2026-69325?
- High severity, with a CVSS score of 8.1, published 8 September 2026.
- Which products and versions are affected?
- Microsoft JScript.
- Is there a fix for CVE-2026-69325?
- 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-2026-69325 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-69325?
- Check whether you run Microsoft JScript. 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
This vulnerability is a heap-based buffer overflow in Microsoft JScript's memory management, allowing an attacker to write data beyond allocated buffer boundaries. The flaw can be exploited over the network without requiring authentication, though it may require user interaction (such as visiting a malicious webpage or opening a crafted document). Successful exploitation grants an attacker arbitrary code execution with the privileges of the JScript process, potentially leading to system compromise. Microsoft has released security updates to address this issue.
Affected products
- Microsoft JScript
Timeline
- 2026-09-08: disclosed