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CVE-2021-40643

31
FAUCET Score

CVE-2021-40643 is a critical Remote Code Execution vulnerability affecting EyesOfNetwork versions prior to 07-07-2021. An unauthenticated attacker can execute arbitrary commands by manipulating the "sendmail" application path within the Cacti configuration page, triggered during a "send test mail" action. This vulnerability carries a CVSS score of 9.8 (Critical) due to its network-based attack vector, low complexity, and complete compromise of confidentiality, integrity, and availability. While no public exploits or active exploitation have been identified, and community discussion is minimal, its high FAUCET Risk Score indicates significant potential impact.

Impacted Technologies

VendorProductVersion(s)CPE
< 2021-07-07CPE matchmatch criteria
cpe:2.3:a:eyesofnetwork:eyesofnetwork:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.68%
Probability of exploitation in next 30 days
EPSS Percentile
84.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0268 is in the 75th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

eyesofnetwork.com
Broken Link
eyesofnetwork.com / en/news/vulnerabilite-cacti
PatchVendor Advisory