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TI-2026-22929 Aliases CVE-2026-28718GHSA-7fqq-633v-44rr

Denial of service due to insufficient input validation in authentication logging.

Priority LOW 39CWE-779Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

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

Summary

Denial of service due to insufficient input validation in authentication logging. The following products are affected: Acronis Cyber Protect 17 (Linux, Windows) before build 41186.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00394 33rd percentileScored 2026-11-07
Fix Fixed Acronis Cyber Protect 17 (Acronis): 41186

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
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 4118641186Patch availableCNA
  • Acronis Cyber Protect 17 VendorAcronis Affected before 41186 Fixed in 41186 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:acronis:cyber_protect:*:*:*:*:*:*:*:*before 17.0.41186VulnerableAcronis
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*not specified by NVDRunning onLinux
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
  • cpe:2.3:a:acronis:cyber_protect:*:*:*:*:*:*:*:* Versions before 17.0.41186 Vulnerable ·Acronis
  • cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

  • Fix · CNA Acronis Cyber Protect 17 (Acronis) Fixed in 41186

Fixed in the same release

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

  • Release ·

    Acronis Cyber Protect 17 41186

    21 records Highest priority Priority MEDIUM 1 MEDIUM, 20 LOW

    Other records, highest priority first

    • TI-2026-22921 Weak authentication in Acronis Cyber Protect 17Priority MEDIUM 43
    • TI-2026-22938 Incorrect default permissions in Acronis Cyber Protect 17Priority LOW 35
    • TI-2026-22933 Local privilege escalation due to improper soft link handling.Priority LOW 33
    Show all 21 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-28718
  2. 2026-10-03 Alias added: GHSA-7fqq-633v-44rr
  3. 2026-10-23 EPSS moved to the 50th–90th percentile
  4. 2026-10-25 EPSS moved to the below the 50th percentile
  5. 2026-10-25 Priority changed: MEDIUM → LOW

References

Advisory 1

  • 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-2025-21717 Missing authorization in Acronis Cyber Protect 16 CVSS 3.0CRITICAL 10.0
  • TI-2023-23738 Authorization bypass in Acronis Cyber Protect 15 CVSS 3.1CRITICAL 9.1
  • TI-2026-22921 Weak authentication in Acronis Cyber Protect 17 CVSS 3.1CRITICAL 9.8
See all 85 →

Sources

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