CVE-2020-10589: v2rayL 2.1.3 allows local users to achieve root access because /etc/v2rayL/config.json is owned by a low-privi

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HIGH 7.8DOWNGRADE

CVE-2020-10589 is a high-severity flaw (CVSS 7.8) affecting v2rayl. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

v2rayL 2.1.3 allows local users to achieve root access because /etc/v2rayL/config.json is owned by a low-privileged user but contains commands that are executed as root, after v2rayL.service is restarted via Sudo.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 67%)
CISA exploited list	No
Weakness	CWE-269
Published	2020-03-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: v2rayl project

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

Am I affected?

Timeline

2020-03-15 21:15 UTCPublished CVE record published
2026-06-17 02:48 UTCUpdated Record last modified

v2rayl project v2rayl DOWNGRADE

Affected: 2.1.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.1.3

1. Check installed version

apt-cache policy v2rayl || rpm -q v2rayl || v2rayl --version

2. No fixed release: DOWNGRADE to a release before 2.1.3 (Debian / Ubuntu)

apt-cache madison v2rayl sudo apt install v2rayl=<VERSION_BEFORE_2.1.3> sudo apt-mark hold v2rayl

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

dnf --showduplicates list v2rayl sudo dnf downgrade v2rayl-<VERSION_BEFORE_2.1.3> sudo dnf versionlock add v2rayl

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-2020-10589?

v2rayl: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-10589 being exploited?

CVE-2020-10589 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-2020-10589 affect?

CVE-2020-10589 affects v2rayl. Severity is high (CVSS 7.8). v2rayL 2.1.3 allows local users to achieve root access because /etc/v2rayL/config.json is owned by a low-privileged user but contains commands that are executed as root, after v2rayL.service is restarted via Sudo.

How urgent is CVE-2020-10589?

Priority 40/100. High severity; Public exploit reference

Software pages

Sudo vulnerabilities

Related CVEs

CVE-2020-10588 HIGH 7.8 DOWNGRADE v2rayL 2.1.3 allows local users to achieve root access because /etc/v2rayL/add.sh and /etc/v2rayL/remove.sh ar

References

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