CVE-2025-5462Network attack vector

Unauthenticated service interruption via heap buffer overflow

Published Aug 12, 2025 · Updated Aug 12, 2025

Heap-based buffer overflow in four Ivanti secure-access products allows remote attackers to interrupt service without authentication. Ivanti has not disclosed the affected component, request path, or the unchecked input copied into heap memory. A network-reachable affected deployment is sufficient; reported impact is limited to denial of service, with no data disclosure or modification.

CVSS severity7.5
High
EPSS probability1.08%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in four Ivanti secure-access products allows remote attackers to interrupt service without authentication. Ivanti has not disclosed the affected component, request path, or the unchecked input copied into heap memory. A network-reachable affected deployment is sufficient; reported impact is limited to denial of service, with no data disclosure or modification.

The record

CVE
CVE-2025-5462
Published
Aug 12, 2025
Updated
Aug 12, 2025
Vendor
Ivanti
Product
Connect Secure
Classifications
CWE-122, CAPEC-100, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 12, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 12, 2025Record 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?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ivanti · Connect SecureAffected versions are unavailable in this record.
Ivanti · Policy SecureAffected versions are unavailable in this record.
Ivanti · ZTA GatewayAffected versions are unavailable in this record.
Ivanti · Neurons for Secure AccessAffected versions are unavailable in this record.

Published CVSS scores

7.5IvantiCVSS: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-122Heap-based Buffer Overflow
CAPEC-100Overflow Buffers
T1499Endpoint Denial of Service

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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