CVE-2023-35077Network attack vector

Unauthenticated antivirus crash via out-of-bounds write

Published Jul 21, 2023 · Updated Oct 24, 2024

An out-of-bounds write in Ivanti Endpoint Manager before 7.9.1.285 allows remote attackers to crash the antivirus service on Windows. Ivanti has not disclosed the affected antivirus routine or the malformed input that causes the write beyond an allocated buffer. Network access without authentication is sufficient, and the documented consequence is a service crash rather than data disclosure or modification.

CVSS severity8.1
High
EPSS probability2.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An out-of-bounds write in Ivanti Endpoint Manager before 7.9.1.285 allows remote attackers to crash the antivirus service on Windows. Ivanti has not disclosed the affected antivirus routine or the malformed input that causes the write beyond an allocated buffer. Network access without authentication is sufficient, and the documented consequence is a service crash rather than data disclosure or modification.

The record

CVE
CVE-2023-35077
Published
Jul 21, 2023
Updated
Oct 24, 2024
Vendor
Ivanti
Product
Ivanti Endpoint Manager
Classifications
CWE-787, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 21, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 24, 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?

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

  1. Affected versionversion=0 <7.9.1.285
  2. Affected versionversion=7.9.1.285 <7.9.1.285

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ivanti · Ivanti Endpoint Managerversion=0 <7.9.1.285; version=7.9.1.285 <7.9.1.285

Published CVSS scores

8.1HackerOne CNACVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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
T1499.004Application or System Exploitation

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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