CVE-2022-24702Public exploit

Remote code execution via oversized AX.25 packets

Published May 31, 2022 · Updated Aug 3, 2024

Buffer overflow in WinAPRS 2.9.0 allows remote attackers to execute code by transmitting malicious AX.25 packets to a KISS TNC. The VHF KISS TNC packet-processing path copies a 1,000-byte received packet into an approximately 880-byte stack buffer, overwriting control data. Exploitation requires WinAPRS to run with KISS mode enabled and a reachable radio or TNC path; demonstrated payloads gain a command shell on Windows XP SP3 and Windows 10.

CVSS severity9.8
Critical
EPSS probability5.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in WinAPRS 2.9.0 allows remote attackers to execute code by transmitting malicious AX.25 packets to a KISS TNC. The VHF KISS TNC packet-processing path copies a 1,000-byte received packet into an approximately 880-byte stack buffer, overwriting control data. Exploitation requires WinAPRS to run with KISS mode enabled and a reachable radio or TNC path; demonstrated payloads gain a command shell on Windows XP SP3 and Windows 10.

The record

CVE
CVE-2022-24702
Published
May 31, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1203
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 31, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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