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CVE-2021-27573

35
FAUCET Score

CVE-2021-27573 is a critical vulnerability affecting Emote Remote Mouse through version 4.0.0.0, allowing unauthenticated remote code execution. Attackers can exploit this by sending specially crafted UDP packets without any prior authorization or authentication. With a CVSS score of 9.8 (CRITICAL), this vulnerability poses a significant risk, enabling complete compromise of confidentiality, integrity, and availability. Despite its high severity and EPSS score, there is currently no public exploit code available, and it has not been observed in active exploitation or received significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.0.0.0CPE matchmatch criteria
cpe:2.3:a:remotemouse:emote_remote_mouse:*:*:*:*:*:*:*:*

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
14.19%
Probability of exploitation in next 30 days
EPSS Percentile
96.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1419 is in the 92nd 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

axelp.io / MouseTrap
ExploitThird Party Advisory
remotemouse.net / blog
Product