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CVE-2020-27644

22
FAUCET Score

CVE-2020-27644 describes an unquoted path vulnerability in the Inventory module of 1E Client 5.0.0.745. This flaw allows remote authenticated or local users to achieve elevated privileges by placing a malicious cryptbase.dll file in the %WINDIR%\Temp\ directory, which is then executed instead of the legitimate Tachyon.Performance.Metrics.exe. The vulnerability carries a high CVSS score of 8.8, indicating a severe risk with a network attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, no public exploit code available (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
5.0.0.745CPE matchmatch criteria
cpe:2.3:a:1e:client:5.0.0.745:*:*:*:*:windows:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.16%
Probability of exploitation in next 30 days
EPSS Percentile
63.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0116 is in the 61st percentile among its peer group of 17,823 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Patch Available

Vendor Patches (1)

latchsetpatch availablevia llm_extracted
View patch

Vendor Advisories (1)

latchsetllm-latchset-8229adcba1106873HIGH

1E client enables privilege escalation

Dec 29, 2020

References

help.1e.com / display/GI/1E+Security+Advisory-1E+Client+for+Windows%3A+CVE-2020-16268%2C+CVE-2020-27643%2C+CVE-2020-27644%2C+CVE-2020-27645
Vendor Advisory