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CVE-2018-18601

27
FAUCET Score

CVE-2018-18601 is a critical buffer overflow vulnerability affecting Guardzilla GZ621W devices running firmware 0.5.1.4, specifically within the TK_set_deviceModel_req_handle function of its cloud communication component. With a CVSS score of 8.1 (HIGH), this vulnerability allows for remote, unauthenticated attacks with high impact on confidentiality, integrity, and availability, despite requiring high attack complexity. While there is no known active exploitation or public exploit code, the vulnerability has garnered some community discussion, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
0.5.1.4CPE matchmatch criteria
cpe:2.3:o:guardzilla:gz621w_firmware:0.5.1.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.15%
Probability of exploitation in next 30 days
EPSS Percentile
63.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0115 is in the 26th percentile among its peer group of 8,914 CVEs.

Social Chatter

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

Remediation records are not available for this CVE.

References

labs.bitdefender.com / 2018/12/iot-report-major-flaws-in-guardzilla-cameras-allow-remote-hijack-of-the-security-device
Third Party Advisory