CVE-2021-47813
Backup Key Recovery 2.2.7 - Denial of Service (PoC)
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 6.7EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
15 Jan 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
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
Affected products
Nsauditor · Backup Key RecoveryWant to know if your infrastructure is exposed to this?
Talk to TrueHacking →