CVE-2022-23676Network attack vector

Remote code execution via mismatched EAP lengths

Published May 10, 2022 · Updated Aug 3, 2024

Heap overflow in affected ArubaOS-Switch releases allows remote attackers to execute code through a crafted RADIUS Access-Challenge. The RADIUS client's PEAP parser allocates a buffer from the inner EAP length but copies bytes using the larger outer AVP length without checking their relationship. Exploitation requires control of the configured RADIUS server or knowledge of its shared secret, and successful code execution grants control of the switch.

CVSS severity9.8
Critical
EPSS probability22.97%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap overflow in affected ArubaOS-Switch releases allows remote attackers to execute code through a crafted RADIUS Access-Challenge. The RADIUS client's PEAP parser allocates a buffer from the inner EAP length but copies bytes using the larger outer AVP length without checking their relationship. Exploitation requires control of the configured RADIUS server or knowledge of its shared secret, and successful code execution grants control of the switch.

The record

CVE
CVE-2022-23676
Published
May 10, 2022
Updated
Aug 3, 2024
Vendor
Hewlett Packard Enterprise (HPE)
Product
ArubaOS-Switch
Classifications
CWE-787, T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 10, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=ArubaOS-Switch 15.xx.xxxx: All versions
  2. Affected versionversion=ArubaOS-Switch 16.01.xxxx: All versions
  3. Affected versionversion=ArubaOS-Switch 16.02.xxxx: K.16.02.0033 and below
  4. Affected versionversion=ArubaOS-Switch 16.03.xxxx: All versions
  5. Affected versionversion=ArubaOS-Switch 16.04.xxxx: All versions
  6. Affected versionversion=ArubaOS-Switch 16.05.xxxx: All versions
  7. Affected versionversion=ArubaOS-Switch 16.06.xxxx: All versions
  8. Affected versionversion=ArubaOS-Switch 16.07.xxxx: All versions
  9. Affected versionversion=ArubaOS-Switch 16.08.xxxx: KB/WB/WC/YA/YB/YC.16.08.0024 and below
  10. Affected versionversion=ArubaOS-Switch 16.09.xxxx: KB/WB/WC/YA/YB/YC.16.09.0019 and below
  11. Affected versionversion=ArubaOS-Switch 16.10.xxxx: KB/WB/WC/YA/YB/YC.16.10.0019 and below
  12. Affected versionversion=ArubaOS-Switch 16.11.xxxx: KB/WB/WC/YA/YB/YC.16.11.0003 and below.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Hewlett Packard Enterprise (HPE) · ArubaOS-Switchversion=ArubaOS-Switch 15.xx.xxxx: All versions; version=ArubaOS-Switch 16.01.xxxx: All versions; version=ArubaOS-Switch 16.02.xxxx: K.16.02.0033 and below; version=ArubaOS-Switch 16.03.xxxx: All versions; version=ArubaOS-Switch 16.04.xxxx: All versions; version=ArubaOS-Switch 16.05.xxxx: All versions; version=ArubaOS-Switch 16.06.xxxx: All versions; version=ArubaOS-Switch 16.07.xxxx: All versions; version=ArubaOS-Switch 16.08.xxxx: KB/WB/WC/YA/YB/YC.16.08.0024 and below; version=ArubaOS-Switch 16.09.xxxx: KB/WB/WC/YA/YB/YC.16.09.0019 and below; version=ArubaOS-Switch 16.10.xxxx: KB/WB/WC/YA/YB/YC.16.10.0019 and below; version=ArubaOS-Switch 16.11.xxxx: KB/WB/WC/YA/YB/YC.16.11.0003 and below.

Published CVSS scores

9.3NVDAV:N/AC:M/Au:N/C:C/I:C/A:C
9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

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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