Quick answers
- Is CVE-2026-118527 exploited in the wild?
- Yes. CVE-2026-118527 is known to be exploited in the wild, first recorded on 30 October 2026. Treat it as urgent.
- How severe is CVE-2026-118527?
- Critical severity, with a CVSS score of 4.3, published 3 November 2026.
- Which products and versions are affected?
- Ivanti Connect Secure.
- Is there a fix for CVE-2026-118527?
- 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-2026-118527 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-118527?
- Check whether you run Ivanti Connect Secure. 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
The vulnerability stems from predictable number or identifier generation in Ivanti Connect Secure, allowing a remote authenticated attacker to upload files with attacker-controlled content to a known location on disk. The flaw is particularly dangerous when chained with CVE-2026-104935 and CVE-2026-111357, enabling escalation to code execution or privilege escalation.
Affected products
- Ivanti Connect Secure
Timeline
- 2026-10-30: disclosed
- 2026-10-30: exploited