Quick answers
- Is CVE-2026-87103 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-87103 being exploited in the wild.
- How severe is CVE-2026-87103?
- High severity, with a CVSS score of 7.4, published 28 October 2026.
- Which products and versions are affected?
- Acronis Cyber Protect 17 before build 42587.
- Is there a fix for CVE-2026-87103?
- Yes: fixed in Cyber Protect 17 build 42587 and later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-87103 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-87103?
- Check whether you run Acronis Cyber Protect at an affected version. 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.
How to fix
- Fixed in: Cyber Protect 17 build 42587 and later
Technical details
The vulnerability stems from improper token validation in Acronis Cyber Protect 17, allowing an attacker to bypass authentication controls. An attacker with network access to the affected system can disclose sensitive information or manipulate system state. The vulnerability affects builds prior to 42587.
Affected products
- Acronis Cyber Protect 17 before build 42587
Timeline
- 2026-10-28: disclosed