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CVE-2020-5601

27
FAUCET Score

CVE-2020-5601 describes a critical arbitrary command execution vulnerability (CWE-77) in version 1.0.0.0 of the Chrome Extension for the NTA e-Tax Reception System. This high-severity vulnerability (CVSS 8.8) can be exploited remotely with low attack complexity, requiring user interaction, and could lead to complete compromise of confidentiality, integrity, and availability. While no public exploits or active exploitation have been observed, and community discussion is minimal, the potential impact remains significant.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.0.0CPE matchmatch criteria
cpe:2.3:a:nta:e-tax_reception_system:1.0.0.0:*:*:*:*:chrome:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
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
1.59%
Probability of exploitation in next 30 days
EPSS Percentile
73.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0159 is in the 72nd percentile among its peer group of 14,848 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 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 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

jvn.jp / en/jp/JVN40039627/index.html
Third Party Advisory
e-tax.nta.go.jp / topics/topics_200618.htm
Vendor Advisory