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CVE-2021-3555

28
FAUCET Score

CVE-2021-3555 is a high-severity buffer overflow vulnerability in the RSTP server component of Eufy Indoor 2K Indoor Cameras, affecting versions 2.0.9.3 and prior. A local attacker can exploit this with low complexity to achieve remote code execution, leading to complete compromise of confidentiality, integrity, and availability. While the CVSS score is 8.8, there is currently no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.0.9.3CPE matchmatch criteria
cpe:2.3:o:eufylife:solo_indoorcam_c24_firmware:*:*:*:*:*:*:*:*
<= 2.0.9.3CPE matchmatch criteria
cpe:2.3:o:eufylife:solo_indoorcam_p24_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.6HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.0
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.82%
Probability of exploitation in next 30 days
EPSS Percentile
53.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0082 is in the 63rd percentile among its peer group of 1,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

bitdefender.com / blog/labs/vulnerabilities-identified-in-eufy2k-indoor-camera
ExploitTechnical DescriptionThird Party Advisory