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CVE-2020-7869

28
FAUCET Score

CVE-2020-7869 describes an improper input validation vulnerability in ZOOK software, a remote administration tool, affecting Mastersoft Windows and ZOOK products. This flaw allows an authenticated remote attacker to create and execute arbitrary files on the agent program by exploiting the "Tight file CMD" function. With a CVSS score of 8.8 (High), this vulnerability poses a significant risk due to its network-based attack vector and high impact on confidentiality, integrity, and availability. There is currently no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.0.4.6CPE matchmatch criteria
cpe:2.3:a:mastersoft:zook:2.0.4.6:*:*:*:*:*:*:*
>= 2.0.4.6, <= 2.0.4.6CPE match
cpe:2.3:a:mastersoft:zook:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.0CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.3
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.61%
Probability of exploitation in next 30 days
EPSS Percentile
73.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0161 is in the 71st percentile among its peer group of 17,823 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

boho.or.kr / krcert/secNoticeView.do
Third Party Advisory