---
id: "CVE-2026-87878"
kind: "vulnerability"
aliases: ["CVE-2026-87878"]
title: "Acronis Cyber Protect 17 Linux binaries ship with executable stack"
severity: "medium"
cvss: 6.3
epss: null
exploited: false
status: "open"
category: "vendor"
products: []
ecosystems: []
tags: ["acronis", "backup", "linux", "vendor"]
not_affected_if: ["fixed-build"]
published_at: "2026-10-28T11:17:28+00:00"
first_seen_at: "2026-10-28T11:32:34+00:00"
updated_at: "2026-10-28T11:33:31+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-87878", "first_seen_at": "2026-10-28T11:32:34+00:00"}]
---

# Acronis Cyber Protect 17 Linux binaries ship with executable stack

Linux binaries in Acronis Cyber Protect 17 are built with the executable-stack attribute enabled, which weakens memory protections. An attacker who can already feed the program crafted input may more easily turn a memory bug into code execution.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Acronis Cyber Protect build number in the product's about or version screen, and compare it with `42587`
- Run `readelf -lW <binary> | grep GNU_STACK` on the Acronis Linux binaries and look for `RWE` flags (unknown whether the sources name specific binary paths)

## Fix

- Update Acronis Cyber Protect 17 (Linux) to build `42587` or later
- unknown whether a workaround exists before the update

## Timeline

- 2026-10-28T11:32:34+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-87878

## From the sources

Linux binaries have executable stack attribute enabled. The following products are affected: Acronis Cyber Protect 17 (Linux) before build 42587.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_