CVE-2020-5601: Chrome Extension for e-Tax Reception System Ver1.0.0.0 allows remote attackers to execute an arbitrary command

This month

HIGH 8.8DOWNGRADE

CVE-2020-5601 is a high-severity flaw (CVSS 8.8) affecting e-tax reception system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Chrome Extension for e-Tax Reception System Ver1.0.0.0 allows remote attackers to execute an arbitrary command via unspecified vectors.

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-77
Published	2020-06-30
Last modified	2026-06-17

Publisher (CNA): JPCERT/CC · Vendor: nta

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-06-30 11:15 UTCPublished CVE record published
2026-06-17 03:21 UTCUpdated Record last modified

nta e-tax reception system DOWNGRADE

Affected: 1.0.0.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.0.0

1. Check installed version

apt-cache policy e-tax-reception-system || rpm -q e-tax-reception-system || e-tax-reception-system --version

2. No fixed release: DOWNGRADE to a release before 1.0.0.0 (Debian / Ubuntu)

apt-cache madison e-tax-reception-system sudo apt install e-tax-reception-system=<VERSION_BEFORE_1.0.0.0> sudo apt-mark hold e-tax-reception-system

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list e-tax-reception-system sudo dnf downgrade e-tax-reception-system-<VERSION_BEFORE_1.0.0.0> sudo dnf versionlock add e-tax-reception-system

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-5601?

e-tax reception system: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-5601 being exploited?

CVE-2020-5601 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-5601 affect?

CVE-2020-5601 affects e-tax reception system. Severity is high (CVSS 8.8). Chrome Extension for e-Tax Reception System Ver1.0.0.0 allows remote attackers to execute an arbitrary command via unspecified vectors.

How urgent is CVE-2020-5601?

Priority 50/100. High severity

Software pages

Google Chrome vulnerabilities

References

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