# CVE-2026-112985: Microsoft JScript integer overflow remote code execution

Source: https://junglewise.ai/threats/cve-2026-112985-integer-overflow-or-wraparound-in-microsoft-jscript-allows-an  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-10. Updated: 2026-11-10  
License: CC BY 4.0 with a link back

CVE-2026-112985 · Severity: high · CVSS 7.5 · Published 2026-11-10

Microsoft JScript, a scripting engine used in web browsers and applications, contains an integer overflow vulnerability that allows an attacker to execute arbitrary code over a network. An attacker can exploit this flaw by sending a specially crafted script to a user's browser, potentially leading to system compromise without requiring user authentication or interaction.

Technologies: [Microsoft JScript](https://junglewise.ai/threats/technologies/jscript). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-112985 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-112985 being exploited in the wild.

**How severe is CVE-2026-112985?** High severity, with a CVSS score of 7.5, published 10 November 2026.

**Which products and versions are affected?** Microsoft JScript.

**Is there a fix for CVE-2026-112985?** 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-2026-112985 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-112985?** 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.

## Affected products

- Microsoft JScript

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-112985](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-112985)

## Related threats

- [Microsoft JScript integer overflow allows code execution](https://junglewise.ai/threats/cve-2026-105578-integer-overflow-or-wraparound-in-microsoft-jscript-allows-an)
- [Microsoft JScript numeric type conversion code execution](https://junglewise.ai/threats/cve-2026-69438-microsoft-jscript-numeric-type-conversion-code-execution)
- [Microsoft JScript heap-based buffer overflow](https://junglewise.ai/threats/cve-2026-69325-microsoft-jscript-heap-based-buffer-overflow)