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CVE-2020-12843

24
FAUCET Score

CVE-2020-12843 is a critical vulnerability affecting ismartgate PRO 1.5.9 and gogogate ismartgate_pro firmware, allowing unauthenticated attackers to upload malicious files by exploiting a flaw in the sound upload function, bypassing security checks with specific WAV magic bytes. With a CVSS score of 9.8, this vulnerability presents a low-complexity attack vector (AV:N/AC:L/PR:N/UI:N) that can lead to complete compromise of confidentiality, integrity, and availability (C:H/I:H/A:H). Despite its high severity and potential for remote exploitation, there is currently no evidence of active exploitation, nor are there publicly available exploit modules in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal, aligning with typical trends for a large percentage of reported vulnerabilities.

Impacted Technologies

VendorProductVersion(s)CPE
1.5.9CPE matchmatch criteria
cpe:2.3:o:gogogate:ismartgate_pro_firmware:1.5.9:*:*:*:*:*:*:*

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
1.31%
Probability of exploitation in next 30 days
EPSS Percentile
67.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0131 is in the 54th percentile among its peer group of 36,862 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

ismartgate.com / secure-garage-door
ProductVendor Advisory
kth.diva-portal.org / smash/get/diva2:1464458/FULLTEXT01.pdf
ExploitThird Party Advisory