CVE-2021-34164: Permissions vulnerability in LIZHIFAKA v.2.2.0 allows authenticated attacker to execute arbitrary commands via

This month

HIGH 8.8DOWNGRADE

CVE-2021-34164 is a high-severity flaw (CVSS 8.8) affecting lizhifaka. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Permissions vulnerability in LIZHIFAKA v.2.2.0 allows authenticated attacker to execute arbitrary commands via the set password function in the admin/index/email location.

Why this priority

High severity
Public exploit reference

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	Low
User interaction	None
EPSS exploit chance	0.8% (top 45%)
CISA exploited list	No
Weakness	CWE-276
Published	2023-02-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: lizhifaka project

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

Am I affected?

Timeline

2023-02-17 18:15 UTCPublished CVE record published
2026-06-17 03:55 UTCUpdated Record last modified

lizhifaka project lizhifaka DOWNGRADE

Affected: 2.2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.2.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.2.0 (Debian / Ubuntu)

apt-cache madison lizhifaka sudo apt install lizhifaka=<VERSION_BEFORE_2.2.0> sudo apt-mark hold lizhifaka

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

dnf --showduplicates list lizhifaka sudo dnf downgrade lizhifaka-<VERSION_BEFORE_2.2.0> sudo dnf versionlock add lizhifaka

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-2021-34164?

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

Is CVE-2021-34164 being exploited?

CVE-2021-34164 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-2021-34164 affect?

CVE-2021-34164 affects lizhifaka. Severity is high (CVSS 8.8). Permissions vulnerability in LIZHIFAKA v.2.2.0 allows authenticated attacker to execute arbitrary commands via the set password function in the admin/index/email location.

How urgent is CVE-2021-34164?

Priority 50/100. High severity; Public exploit reference

References

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