What is the CVSS score of CVE-2020-37190?

CVE-2020-37190 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.0%.

Which versions of Firefox are affected by CVE-2020-37190?

Top Password Firefox Password Recovery 2.8 contains a denial of service vulnerability that could disrupt user access to password recovery functionality.

Is there a public PoC exploit available for CVE-2020-37190?

Yes, a public proof-of-concept exploit is available for CVE-2020-37190. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2020-37190?

Within 24 hours: Inventory all systems running Top Password Firefox Password Recovery 2.8 and assess business criticality. Within 7 days: Implement input validation controls and monitor for exploitation attempts; contact vendor for patch timeline and alternative solutions. Within 30 days: Migrate to an alternative, supported password management or recovery solution, or decommission the affected tool if not business-critical.

Firefox CVE-2020-37190

HIGH

Classic Buffer Overflow (CWE-120)

2026-02-11 disclosure@vulncheck.com

Denial Of Service Firefox

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:02 vuln.today

PoC Detected

Feb 12, 2026 - 15:10 vuln.today

Public exploit code

CVE Published

Feb 11, 2026 - 21:16 nvd

HIGH 7.5

DescriptionCVE.org

Top Password Firefox Password Recovery 2.8 contains a denial of service vulnerability that allows attackers to crash the application by overflowing input fields. Attackers can trigger the vulnerability by inserting 5000 characters into the User Name or Registration Code input fields.

AnalysisAI

Technical ContextAI

Classified as CWE-120 (Classic Buffer Overflow). Top Password Firefox Password Recovery 2.8 contains a denial of service vulnerability that allows attackers to crash the application by overflowing input fields. Attackers can trigger the vulnerability by inserting 5000 characters into the User Name or Registration Code input fields.

Affected ProductsAI

Top Password Firefox Password Recovery 2.8 contains a denial of service vulnerability that allows attackers to crash the application by overflowing in

RemediationAI

Monitor vendor advisories for a patch. Enable ASLR, DEP/NX, and stack canaries where possible. Restrict network access to the affected service where possible.