Quick answers
- Is CVE-2026-87880 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-87880 being exploited in the wild.
- How severe is CVE-2026-87880?
- Medium severity, with a CVSS score of 6.8, published 28 October 2026.
- Which products and versions are affected?
- Acronis Cyber Protect 17 before build 42587.
- Is there a fix for CVE-2026-87880?
- Yes: fixed in Acronis 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-2026-87880 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-87880?
- 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: Acronis Cyber Protect 17 build 42587 and later
Technical details
The vulnerability stems from inadequate SSL/TLS certificate verification in a component of Acronis Cyber Protect, allowing man-in-the-middle attacks over a network connection. An attacker can intercept communications between the client and server to exfiltrate sensitive data without authentication requirements beyond network access. The issue affects versions before build 42587 on both Linux and Windows platforms.
Affected products
- Acronis Cyber Protect 17 before build 42587
Timeline
- 2026-10-28: disclosed