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TI-2020-12722 Aliases CVE-2020-16171GHSA-2347-fp75-m9xc

An issue was discovered in Acronis Cyber Backup before 12.5 Build 16342.

Priority LOW 37CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

An issue was discovered in Acronis Cyber Backup before 12.5 Build 16342. Some API endpoints on port 9877 under /api/ams/ accept an additional custom Shard header. The value of this header is afterwards used in a separate web request issued by the application itself. This can be abused to conduct SSRF attacks against otherwise unreachable Acronis services that are bound to localhost such as the NotificationService on 127.0.0.1:30572.

Why it matters now

EPSS 0.05505 92nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 16

CPEVersionsRoleVendor
cpe:2.3:a:acronis:cyber_backup:*:*:*:*:*:*:*:*up to 12.5VulnerableAcronis
cpe:2.3:a:acronis:cyber_backup:12.5:-:*:*:*:*:*:*12.5VulnerableAcronis
cpe:2.3:a:acronis:cyber_backup:12.5:10130:*:*:*:*:*:*12.5 10130VulnerableAcronis
cpe:2.3:a:acronis:cyber_backup:12.5:10330:*:*:*:*:*:*12.5 10330VulnerableAcronis
cpe:2.3:a:acronis:cyber_backup:12.5:11010:*:*:*:*:*:*12.5 11010VulnerableAcronis
cpe:2.3:a:acronis:cyber_backup:12.5:13160:*:*:*:*:*:*12.5 13160VulnerableAcronis
cpe:2.3:a:acronis:cyber_backup:12.5:13400:*:*:*:*:*:*12.5 13400VulnerableAcronis
cpe:2.3:a:acronis:cyber_backup:12.5:14280:*:*:*:*:*:*12.5 14280VulnerableAcronis
cpe:2.3:a:acronis:cyber_backup:12.5:14330:*:*:*:*:*:*12.5 14330VulnerableAcronis
cpe:2.3:a:acronis:cyber_backup:12.5:16180:*:*:*:*:*:*12.5 16180VulnerableAcronis
  • cpe:2.3:a:acronis:cyber_backup:*:*:*:*:*:*:*:* Versions up to 12.5 Vulnerable ·Acronis
  • cpe:2.3:a:acronis:cyber_backup:12.5:-:*:*:*:*:*:* Versions 12.5 Vulnerable ·Acronis
  • cpe:2.3:a:acronis:cyber_backup:12.5:10130:*:*:*:*:*:* Versions 12.5 10130 Vulnerable ·Acronis
  • cpe:2.3:a:acronis:cyber_backup:12.5:10330:*:*:*:*:*:* Versions 12.5 10330 Vulnerable ·Acronis
  • cpe:2.3:a:acronis:cyber_backup:12.5:11010:*:*:*:*:*:* Versions 12.5 11010 Vulnerable ·Acronis
  • cpe:2.3:a:acronis:cyber_backup:12.5:13160:*:*:*:*:*:* Versions 12.5 13160 Vulnerable ·Acronis
  • cpe:2.3:a:acronis:cyber_backup:12.5:13400:*:*:*:*:*:* Versions 12.5 13400 Vulnerable ·Acronis
  • cpe:2.3:a:acronis:cyber_backup:12.5:14280:*:*:*:*:*:* Versions 12.5 14280 Vulnerable ·Acronis
  • cpe:2.3:a:acronis:cyber_backup:12.5:14330:*:*:*:*:*:* Versions 12.5 14330 Vulnerable ·Acronis
  • cpe:2.3:a:acronis:cyber_backup:12.5:16180:*:*:*:*:*:* Versions 12.5 16180 Vulnerable ·Acronis
Show 6 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:acronis:cyber_backup:12.5:16318:*:*:*:*:*:*12.5 16318VulnerableAcronis
cpe:2.3:a:acronis:cyber_backup:12.5:16327:*:*:*:*:*:*12.5 16327VulnerableAcronis
cpe:2.3:a:acronis:cyber_backup:12.5:7641:*:*:*:*:*:*12.5 7641VulnerableAcronis
cpe:2.3:a:acronis:cyber_backup:12.5:7970:*:*:*:*:*:*12.5 7970VulnerableAcronis
cpe:2.3:a:acronis:cyber_backup:12.5:8850:*:*:*:*:*:*12.5 8850VulnerableAcronis
cpe:2.3:a:acronis:cyber_backup:12.5:9010:*:*:*:*:*:*12.5 9010VulnerableAcronis
  • cpe:2.3:a:acronis:cyber_backup:12.5:16318:*:*:*:*:*:* Versions 12.5 16318 Vulnerable ·Acronis
  • cpe:2.3:a:acronis:cyber_backup:12.5:16327:*:*:*:*:*:* Versions 12.5 16327 Vulnerable ·Acronis
  • cpe:2.3:a:acronis:cyber_backup:12.5:7641:*:*:*:*:*:* Versions 12.5 7641 Vulnerable ·Acronis
  • cpe:2.3:a:acronis:cyber_backup:12.5:7970:*:*:*:*:*:* Versions 12.5 7970 Vulnerable ·Acronis
  • cpe:2.3:a:acronis:cyber_backup:12.5:8850:*:*:*:*:*:* Versions 12.5 8850 Vulnerable ·Acronis
  • cpe:2.3:a:acronis:cyber_backup:12.5:9010:*:*:*:*:*:* Versions 12.5 9010 Vulnerable ·Acronis

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-16171
  2. 2026-10-03 Alias added: GHSA-2347-fp75-m9xc

References

Exploit 1

Advisory 1

  • TI-2022-03146 Improper privilege management in Acronis Cyber Protect 15 CVSS 3.1HIGH 8.8
  • TI-2022-13042 Improper authentication in Acronis Cyber Protect 15 CVSS 3.1HIGH 7.5
  • TI-2020-08193 Improper access control in Acronis Cyber Backup CVSS 3.1HIGH 7.8

Sources

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