CVE-2022-24704Network attack vector

Process-memory corruption via unchecked RADIUS attribute length

Published Feb 14, 2022 · Updated Sep 16, 2024

Buffer overflow in Accel-PPP 1.12 and earlier allows remote attackers to corrupt process memory via a crafted RADIUS packet. In rad_packet_recv, an attacker-controlled attribute length directs an unchecked copy into the fixed attr->val.integer buffer for IPv4, IPv6, IPv6-prefix, or interface-ID attributes. The malformed packet must reach the daemon; the resulting out-of-bounds write corrupts its process memory.

CVSS severity9.8
Critical
EPSS probability1.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Buffer overflow in Accel-PPP 1.12 and earlier allows remote attackers to corrupt process memory via a crafted RADIUS packet. In rad_packet_recv, an attacker-controlled attribute length directs an unchecked copy into the fixed attr->val.integer buffer for IPv4, IPv6, IPv6-prefix, or interface-ID attributes. The malformed packet must reach the daemon; the resulting out-of-bounds write corrupts its process memory.

The record

CVE
CVE-2022-24704
Published
Feb 14, 2022
Updated
Sep 16, 2024
Vendor
Accel PPP Inc
Product
Accel-PPP
Classifications
CWE-120, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 14, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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=1.12 <=1.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Accel PPP Inc · Accel-PPPversion=1.12 <=1.12

Published CVSS scores

7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NIST NVDCVSS: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-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1190Exploit Public-Facing Application

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo