CVE-2023-46216Public exploitNetwork attack vector

Code execution via MuProperty type 101 overflow

Published Dec 19, 2023 · Updated Aug 2, 2024

Stack-based buffer overflow in Ivanti Avalanche 6.4.1 and earlier allows remote attackers to execute code or crash the Mobile Device Server. WLAvalancheService.exe copies attacker-controlled token data from a type 101 MuProperty into a fixed-size stack buffer without enforcing the destination size. A crafted message to TCP port 1777 requires no authentication and can corrupt the stack, terminate the service, or redirect execution.

CVSS severity9.8
Critical
EPSS probability36.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in Ivanti Avalanche 6.4.1 and earlier allows remote attackers to execute code or crash the Mobile Device Server. WLAvalancheService.exe copies attacker-controlled token data from a type 101 MuProperty into a fixed-size stack buffer without enforcing the destination size. A crafted message to TCP port 1777 requires no authentication and can corrupt the stack, terminate the service, or redirect execution.

The record

CVE
CVE-2023-46216
Published
Dec 19, 2023
Updated
Aug 2, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1190, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 19, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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 vectornetwork
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
9.8HackerOneCVSS:3.0/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 exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1190Exploit Public-Facing Application
T1499Endpoint Denial of Service

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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