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TI-2024-36866 Aliases CVE-2024-55539GHSA-f27q-fqv4-577w

Broken or risky cryptographic algorithm in Acronis Cyber Protect Cloud Agent

Priority LOW 12CWE-327Published · Updated

Key facts

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

Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-327.

Summary

Weak algorithm used to sign RPM package. The following products are affected: Acronis Cyber Protect Cloud Agent (Linux) before build 39185, Acronis Cyber Protect 16 (Linux) before build 39938.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00114 1st percentileScored 2026-11-07
Fix Fixed Acronis Cyber Protect Cloud Agent (Acronis): 39185Acronis Cyber Protect 16 (Acronis): 39938

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 Cloud Agentbefore 3918539185Patch availableCNA
AcronisAcronis Cyber Protect 16before 3993839938Patch availableCNA
  • Acronis Cyber Protect Cloud Agent VendorAcronis Affected before 39185 Fixed in 39185 Patch available CNA
  • Acronis Cyber Protect 16 VendorAcronis Affected before 39938 Fixed in 39938 Patch available CNA

CPE names Threatist (inferred) · 2

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

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

Remediation

  • Fix · CNA Acronis Cyber Protect Cloud Agent (Acronis) Fixed in 39185
  • Fix · CNA Acronis Cyber Protect 16 (Acronis) Fixed in 39938

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-55539
  2. 2026-10-03 Alias added: GHSA-f27q-fqv4-577w

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