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CVE-2021-26618

30
FAUCET Score

CVE-2021-26618 describes an improper input validation vulnerability in ToWord within ToOffice, affecting both Microsoft and Tmax versions on Windows. This critical vulnerability (CVSS 9.8) allows remote attackers to create arbitrary files, potentially including malicious code, leading to complete compromise of confidentiality, integrity, and availability. Despite its high severity and ease of exploitation (low attack complexity, no user interaction required), there is currently no evidence of active exploitation, public exploit code, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.15.6CPE matchmatch criteria
cpe:2.3:a:tmax:tooffice:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.1HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.00%
Probability of exploitation in next 30 days
EPSS Percentile
59.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0100 is in the 44th 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

krcert.or.kr / krcert/secNoticeView.do
Third Party AdvisoryVDB Entry