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CVE-2019-3973

19
FAUCET Score

CVE-2019-3973 describes a Denial of Service vulnerability in Comodo Antivirus versions 11.0.0.6582 and below. A low-privileged attacker can trigger an out-of-bounds write in the CmdGuard.sys driver, leading to a kernel crash. This vulnerability has a CVSS score of 5.5 (Medium), indicating a local attack vector with low complexity and a high impact on availability. There is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 11.0.0.6582CPE matchmatch criteria
cpe:2.3:a:comodo:antivirus:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 87th percentile among its peer group of 15,937 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (6)

aristavendor investigatingvia llm_extracted
naturalintelligencevendor investigatingvia llm_extracted
netgearvendor investigatingvia llm_extracted
opencartvendor investigatingvia llm_extracted
payloadcmsvendor investigatingvia llm_extracted
safarivendor investigatingvia llm_extracted

Vendor Advisories (6)

netgearllm-netgear-95d7021ab1ffcb5cMEDIUM

Comodo Antivirus Multiple Vulnerabilities

Jul 15, 2019
aristallm-arista-9e75c09d7b9af8a5MEDIUM

Comodo Antivirus Multiple Vulnerabilities

Jul 15, 2019
opencartllm-opencart-406df42f0dfa770dMEDIUM

Comodo Antivirus Multiple Vulnerabilities

Jul 15, 2019
safarillm-safari-a4007e278c031e50MEDIUM

Comodo Antivirus Multiple Vulnerabilities

Jul 15, 2019
naturalintelligencellm-naturalintelligence-166fddd2cba15703MEDIUM

Comodo Antivirus Multiple Vulnerabilities

Jul 15, 2019
payloadcmsllm-payloadcms-134da0e3747e02efMEDIUM

Comodo Antivirus Multiple Vulnerabilities

Jul 15, 2019

References

tenable.com / security/research/tra-2019-34
ExploitThird Party Advisory