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TI-2026-81801 Aliases CVE-2026-87100GHSA-4cvj-f2g8-85g6

Missing binary hardening in Acronis Cyber Protect 17 for Linux

Priority LOW 16CWE-693Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-693.

Summary

Acronis Cyber Protect 17 for Linux before build 42587 has a protection mechanism failure (CWE-693) caused by missing binary hardening in its Linux executables. A local user with low privileges can affect the confidentiality and integrity of the product, though the attack is highly complex. No exploitation is reported.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

Protection mechanism failure due to missing binary hardening in Linux executables. The following products are affected: Acronis Cyber Protect 17 (Linux) before build 42587.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00097 0th percentileScored 2026-11-07
Fix Fixed Acronis Cyber Protect 17 (Acronis): 42587

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AcronisAcronis Cyber Protect 17before 4258742587Patch availableCNA
  • Acronis Cyber Protect 17 VendorAcronis Affected before 42587 Fixed in 42587 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:acronis:cyber_protect:*:*:*:*:*:*:*:*——Acronis
  • cpe:2.3:a:acronis:cyber_protect:*:*:*:*:*:*:*:* Versions — — ·Acronis

Remediation

Update Acronis Cyber Protect 17 (Linux) to build 42587 or later.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA Acronis Cyber Protect 17 (Acronis) Fixed in 42587

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Acronis Cyber Protect 17 42587

    11 records Highest priority Priority LOW 11 LOW

    Other records, highest priority first

    • TI-2026-81804 Token validation flaw in Acronis Cyber Protect 17 exposes dataPriority LOW 34
    • TI-2026-81803 Acronis Cyber Protect 17 token validation disclosure and manipulationPriority LOW 34
    • TI-2025-43981 Local privilege escalation in Acronis Cyber Protect productsPriority LOW 33
    Show all 11 records →

Timeline

  1. 2026-10-28 Threatist record created from CVE-2026-87100
  2. 2026-10-28 Alias added: GHSA-4cvj-f2g8-85g6
  3. 2026-11-06 CISA SSVC decision points changed

References

Advisory 1

  • TI-2023-24253 Remote command execution due to use of default passwords. KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-59964 Incorrect default permissions in Acronis Backup plugin for cPanel & WHM KEVCVSS 3.0HIGH 7.8
  • TI-2022-03146 Improper privilege management in Acronis Cyber Protect 15 CVSS 3.1HIGH 8.8
  • TI-2025-21714 Weak authentication in Acronis Cyber Protect 16 CVSS 3.0CRITICAL 10.0
  • TI-2025-21713 Weak authentication in Acronis Cyber Protect 16 CVSS 3.0CRITICAL 10.0
  • TI-2025-21712 Missing authentication in Acronis Cyber Protect Cloud Agent CVSS 3.0CRITICAL 9.8
See all 231 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences