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CVE-2018-20218

44
FAUCET Score

CVE-2018-20218 describes a critical command injection vulnerability affecting Teracue ENC-400 devices running firmware 2.56 and below. This flaw allows an unauthenticated attacker to execute arbitrary shell commands by injecting malicious input into the password parameter of the login form, due to a lack of proper escaping and validation. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with no user interaction, leading to complete compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog or showing active exploitation, public exploit code is available on ExploitDB, indicating a clear path for attackers. Despite its severity, there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.56CPE matchmatch criteria
cpe:2.3:o:teracue:enc-400_hdmi_firmware:*:*:*:*:*:*:*:*
<= 2.56CPE matchmatch criteria
cpe:2.3:o:teracue:enc-400_hdmi2_firmware:*:*:*:*:*:*:*:*
<= 2.56CPE matchmatch criteria
cpe:2.3:o:teracue:enc-400_hdsdi_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/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
3.0

Exploit Intelligence

EPSS Score
10.73%
Probability of exploitation in next 30 days
EPSS Percentile
95.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-46451 · Feb 22, 2019
This CVE's current EPSS score of 0.1074 is in the 91st percentile among its peer group of 36,833 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

seclists.org / fulldisclosure/2019/Feb/48
ExploitMailing ListThird Party Advisory
zxsecurity.co.nz / research.html
Not Applicable