Description
Backup Key Recovery 2.2.7 contains a denial of service vulnerability that allows attackers to crash the application by overflowing the registration code input field. Attackers can paste a large buffer of 256 repeated characters into the registration key field to trigger application instability and potential crash.
Published: 2026-01-15
Score: 6.7 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 16 Jan 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 16 Jan 2026 14:15:00 +0000

Type Values Removed Values Added
First Time appeared Nsauditor
Nsauditor backup Key Recovery
Vendors & Products Nsauditor
Nsauditor backup Key Recovery

Thu, 15 Jan 2026 23:45:00 +0000

Type Values Removed Values Added
Description Backup Key Recovery 2.2.7 contains a denial of service vulnerability that allows attackers to crash the application by overflowing the registration code input field. Attackers can paste a large buffer of 256 repeated characters into the registration key field to trigger application instability and potential crash.
Title Backup Key Recovery 2.2.7 - Denial of Service (PoC)
Weaknesses CWE-120
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 6.7, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


Subscriptions

Nsauditor Backup Key Recovery
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-01-16T15:48:22.992Z

Reserved: 2026-01-14T17:11:19.895Z

Link: CVE-2021-47813

cve-icon Vulnrichment

Updated: 2026-01-16T15:48:19.713Z

cve-icon NVD

Status : Deferred

Published: 2026-01-16T00:16:26.640

Modified: 2026-04-15T00:35:42.020

Link: CVE-2021-47813

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-16T13:42:18Z

Weaknesses