CVE-2020-37185
Published: 11 February 2026
Summary
CVE-2020-37185 is a medium-severity Classic Buffer Overflow (CWE-120) vulnerability in Nsauditor (inferred from references). Its CVSS base score is 4.6 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked at the 13.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 SC-5 (Denial-of-service Protection) and SI-10 (Information Input Validation).
Deeper analysis
CVE-2020-37185 is a denial-of-service vulnerability in Backup Key Recovery version 2.2.5, stemming from a buffer overflow (CWE-120) in the 'Name' input field. Attackers can overflow this field to crash the application. The vulnerability carries a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H), reflecting a high-impact availability issue exploitable over the network with low complexity and no privileges or user interaction required.
Any unauthenticated remote attacker can exploit this by generating a 1000-character payload and pasting it into the registration name field, triggering an application crash and denying service to legitimate users.
Advisories and related resources, including those at https://www.vulncheck.com/advisories/backup-key-recovery-name-denial-of-service and an exploit proof-of-concept at https://www.exploit-db.com/exploits/47909, document the issue, though specific patch or mitigation guidance is not detailed in the provided references.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2020-31131
Vulnerability details
Backup Key Recovery 2.2.5 contains a denial of service vulnerability that allows attackers to crash the application by overflowing the 'Name' input field. Attackers can generate a 1000-character payload and paste it into the registration name field to trigger an…
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application crash.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Buffer overflow in Name field directly enables application crash for Endpoint DoS via exploitation (T1499.004).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly prevents buffer overflow DoS by validating the length and format of the 'Name' input field to reject oversized payloads.
Protects the application against denial-of-service attacks like the crash induced by excessive input in the registration name field.
Enforces restrictions on information inputs such as maximum character length for the 'Name' field to block 1000-character overflow payloads.