CVE-2022-30882: pyanxdns package in PyPI version 0.2 is vulnerable to code execution backdoor

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2022-30882 is a critical-severity flaw (CVSS 9.8) affecting pyanxdns. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

pyanxdns package in PyPI version 0.2 is vulnerable to code execution backdoor. The impact is: execute arbitrary code (remote). When installing the pyanxdns package of version 0.2, the request package will be installed.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.5% (top 16%)
CISA exploited list	No
Published	2022-06-08
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: pyanxdns project

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

Am I affected?

Timeline

2022-06-08 20:15 UTCPublished CVE record published
2026-06-17 04:44 UTCUpdated Record last modified

pyanxdns project pyanxdns DOWNGRADE

Affected: 0.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.2

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.2 (Debian / Ubuntu)

apt-cache madison pyanxdns sudo apt install pyanxdns=<VERSION_BEFORE_0.2> sudo apt-mark hold pyanxdns

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

dnf --showduplicates list pyanxdns sudo dnf downgrade pyanxdns-<VERSION_BEFORE_0.2> sudo dnf versionlock add pyanxdns

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-2022-30882?

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

Is CVE-2022-30882 being exploited?

CVE-2022-30882 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-2022-30882 affect?

CVE-2022-30882 affects pyanxdns. Severity is critical (CVSS 9.8). pyanxdns package in PyPI version 0.2 is vulnerable to code execution backdoor. The impact is: execute arbitrary code (remote). When installing the pyanxdns package of version 0.2, the request package will be installed.

How urgent is CVE-2022-30882?

Priority 65/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PyPI packages vulnerabilities

References

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