CVE-2022-24702: An issue was discovered in WinAPRS 2.9.0

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2022-24702 is a critical-severity flaw (CVSS 9.8) 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 the VHF KISS TNC component allows a remote attacker to achieve remote code execution via malicious AX.25 packets over the air. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

Why this priority

Critical severity
EPSS top 7%: very likely to be exploited
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	6.0% (top 7%)
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-2022-24702?

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

Is CVE-2022-24702 being exploited?

CVE-2022-24702 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-2022-24702 affect?

CVE-2022-24702 affects winaprs. Severity is critical (CVSS 9.8). An issue was discovered in WinAPRS 2.9.0. A buffer overflow in the VHF KISS TNC component allows a remote attacker to achieve remote code execution via malicious AX.25 packets over the air. NOTE: This vulnerability only affects products tha

How urgent is CVE-2022-24702?

Priority 68/100. Critical severity; EPSS top 7%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2022-24701 HIGH 7.8 DOWNGRADE An issue was discovered in WinAPRS 2.9.0
CVE-2022-24700 HIGH 7.5 DOWNGRADE An issue was discovered in WinAPRS 2.9.0

References

← Back to latest CVEs