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Vulnerabilities ›

CVE-2021-47813

High

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

CWE-120 — Weakness Type

                    Published: Jan 16, 2026                      ·  Modified: Feb 28, 2026                      ·  Source: NVD                

CVSS v3

7.5

🔗 NVD Official

📄 Description (English)

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.

🤖

Queued for AI Analysis

This CVE will be auto-analyzed on the next cron run.

🔗 References & Sources 3

http://www.nsauditor.com

disclosure@vulncheck.com

https://www.exploit-db.com/exploits/49966

disclosure@vulncheck.com

https://www.vulncheck.com/advisories/backup-key-recovery-denial-of-service-poc

disclosure@vulncheck.com

📊 CVSS Score

7.5

/ 10.0 — High

📊 CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack VectorN — None / Network

Attack ComplexityL — Low / Local

Privileges RequiredN — None / Network

User InteractionN — None / Network

ScopeU — Unchanged

ConfidentialityN — None / Network

IntegrityN — None / Network

AvailabilityH — High

📋 Quick Facts

Severity High

CVSS Score7.5

CWECWE-120

EPSS0.01%

Exploit No

Patch ✓ Yes

Published 2026-01-16

Source Feed nvd

Views 2

🏷️ Tags

CWE-120

⚡ Actions

🔗 NVD Official Page ⚡ Exploit-DB Search 🐙 GitHub PoC Search 🎯 MITRE ATT&CK 📊 CVE Details

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