What is the CVSS score of CVE-2019-20000?

CVE-2019-20000 has a CVSS 3.1 base score of 5.9 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N. EPSS exploitation probability: 0.6%.

Is there a public PoC exploit available for CVE-2019-20000?

Yes, a public proof-of-concept exploit is available for CVE-2019-20000. Prioritise patching immediately. EPSS: 0.6%.

Premium Protection CVE-2019-20000

MEDIUM

Time-of-check Time-of-use (TOCTOU) Race Condition (CWE-367)

2019-12-26 cve@mitre.org

Information Disclosure Premium Protection

5.9

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.9 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Lifecycle Timeline

CVE Published

Dec 26, 2019 - 05:15 nvd

MEDIUM 5.9

DescriptionNVD

The malware scan function in BullGuard Premium Protection 20.0.371.8 has a TOCTOU issue that enables a symbolic link attack, allowing privileged files to be deleted.

AnalysisAI

The malware scan function in BullGuard Premium Protection 20.0.371.8 has a TOCTOU issue that enables a symbolic link attack, allowing privileged files to be deleted. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-367. The malware scan function in BullGuard Premium Protection 20.0.371.8 has a TOCTOU issue that enables a symbolic link attack, allowing privileged files to be deleted. Affected products include: Bullguard Premium Protection.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.