Quick answers
- Is CVE-2026-87878 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-87878 being exploited in the wild.
- How severe is CVE-2026-87878?
- Medium severity, with a CVSS score of 6.3, published 28 October 2026.
- Which products and versions are affected?
- Acronis Cyber Protect 17 (Linux) before build 42587.
- Is there a fix for CVE-2026-87878?
- Yes: fixed in Acronis Cyber Protect 17 (Linux) build 42587. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-87878 attacked?
- It is attacked with local access, in a software library.
- Am I affected by CVE-2026-87878?
- 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 (Linux) build 42587
Technical details
The vulnerability involves Linux ELF binaries compiled with the executable stack (PT_GNU_STACK) attribute set, which disables Data Execution Prevention (DEP) and stack canary protections. This weakens exploit mitigations that normally prevent code execution on the stack. While not a direct remote code execution flaw, it reduces the barrier to exploitation when combined with other memory corruption vulnerabilities, enabling privilege escalation or arbitrary code execution on affected Linux systems.
Affected products
- Acronis Cyber Protect 17 (Linux) before build 42587
Timeline
- 2026-10-28: disclosed