CVE-2022-24700: An issue was discovered in WinAPRS 2.9.0

This week

HIGH 7.5REMOTEDOWNGRADE

CVE-2022-24700 is a high-severity flaw (CVSS 7.5) affecting winaprs. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in WinAPRS 2.9.0. A buffer overflow in DIGI address processing for VHF KISS packets allows a remote attacker to cause a denial of service (daemon crash) via a malicious AX.25 packet over the air. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

Why this priority

High 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	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.8% (top 22%)
CISA exploited list	No
Weakness	CWE-120
Published	2022-06-02
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: winaprs

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

Am I affected?

Timeline

2022-06-02 14:15 UTCPublished CVE record published
2026-06-17 04:32 UTCUpdated Record last modified

winaprs winaprs DOWNGRADE

Affected: 2.9.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.9.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.9.0 (Debian / Ubuntu)

apt-cache madison winaprs sudo apt install winaprs=<VERSION_BEFORE_2.9.0> sudo apt-mark hold winaprs

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

dnf --showduplicates list winaprs sudo dnf downgrade winaprs-<VERSION_BEFORE_2.9.0> sudo dnf versionlock add winaprs

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-2022-24700?

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

Is CVE-2022-24700 being exploited?

CVE-2022-24700 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-2022-24700 affect?

CVE-2022-24700 affects winaprs. Severity is high (CVSS 7.5). An issue was discovered in WinAPRS 2.9.0. A buffer overflow in DIGI address processing for VHF KISS packets allows a remote attacker to cause a denial of service (daemon crash) via a malicious AX.25 packet over the air. NOTE: This vulnerabi

How urgent is CVE-2022-24700?

Priority 56/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2022-24702 CRITICAL 9.8 DOWNGRADE An issue was discovered in WinAPRS 2.9.0
CVE-2022-24701 HIGH 7.8 DOWNGRADE An issue was discovered in WinAPRS 2.9.0

References

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