CVE-2022-29767: adbyby v2.7 allows external users to make connections via port 8118

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MEDIUM 6.5DOWNGRADE

CVE-2022-29767 is a medium-severity flaw (CVSS 6.5) affecting adbyby. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

adbyby v2.7 allows external users to make connections via port 8118. This can cause a program logic error and lead to a Denial of Service (DoS) via high CPU usage due to a large number of connections.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.9% (top 40%)
CISA exploited list	No
Weakness	CWE-770
Published	2022-06-03
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: adbyby project

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

Am I affected?

Timeline

2022-06-03 01:15 UTCPublished CVE record published
2026-06-17 04:40 UTCUpdated Record last modified

adbyby project adbyby DOWNGRADE

Affected: 2.7

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.7

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.7 (Debian / Ubuntu)

apt-cache madison adbyby sudo apt install adbyby=<VERSION_BEFORE_2.7> sudo apt-mark hold adbyby

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

dnf --showduplicates list adbyby sudo dnf downgrade adbyby-<VERSION_BEFORE_2.7> sudo dnf versionlock add adbyby

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-2022-29767?

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

Is CVE-2022-29767 being exploited?

CVE-2022-29767 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-2022-29767 affect?

CVE-2022-29767 affects adbyby. Severity is medium (CVSS 6.5). adbyby v2.7 allows external users to make connections via port 8118. This can cause a program logic error and lead to a Denial of Service (DoS) via high CPU usage due to a large number of connections.

How urgent is CVE-2022-29767?

Priority 43/100. Public exploit reference

References

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