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CVE-2021-26612

29
FAUCET Score

CVE-2021-26612 is a critical improper input validation vulnerability in the copy method of the Nexacro platform, affecting both Microsoft and Tobesoft Nexacro products on Windows. This flaw allows remote, unauthenticated attackers to create arbitrary files, which can then be leveraged to execute arbitrary commands, leading to complete compromise of confidentiality, integrity, and availability. Despite its CVSS score of 9.8 and high FAUCET Risk Score, there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 17.1.2.500CPE matchmatch criteria
cpe:2.3:a:tobesoft:nexacro:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.16%
Probability of exploitation in next 30 days
EPSS Percentile
64.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0116 is in the 50th percentile among its peer group of 36,897 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

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