CVE-2022-22336Network attack vector

Service interruption via remote resource leak

Published Feb 23, 2022 · Updated Sep 17, 2024

Resource leak in IBM Sterling Secure Proxy 3.4.3.2, 6.0.2.0, and 6.0.3.0 allows remote attackers to exhaust resources and interrupt service. IBM has not disclosed the leaking component, retained resource, or network input that triggers the leak. The unauthenticated network path requires no user interaction; the documented consequence is resource exhaustion and service interruption.

CVSS severity7.5
High
EPSS probability2.00%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource leak in IBM Sterling Secure Proxy 3.4.3.2, 6.0.2.0, and 6.0.3.0 allows remote attackers to exhaust resources and interrupt service. IBM has not disclosed the leaking component, retained resource, or network input that triggers the leak. The unauthenticated network path requires no user interaction; the documented consequence is resource exhaustion and service interruption.

The record

CVE
CVE-2022-22336
Published
Feb 23, 2022
Updated
Sep 17, 2024
Vendor
IBM
Product
IBM Sterling Secure Proxy
Classifications
CWE-401, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 23, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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=3.4.3.2
  2. Affected versionversion=6.0.2.0
  3. Affected versionversion=6.0.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM Sterling Secure Proxyversion=3.4.3.2; version=6.0.2.0; version=6.0.3.0

Published CVSS scores

7.5IBMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5NIST NVDCVSS: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-401Missing Release of Memory after Effective Lifetime
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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