CVE-2023-33832

Local service interruption via TOCTOU race

Published Jul 19, 2023 · Updated Oct 21, 2024

Improper input validation in IBM Storage Protect 8.1.0.0 through 8.1.17.0 allows local users to interrupt service through a race. IBM has disclosed only that a time-of-check-to-time-of-use operation mishandles input; it has not named the affected file, function, or resource. Local execution is required; IBM reports no confidentiality or integrity impact and does not specify whether the interruption is a hang or crash.

CVSS severity6.2
Medium
EPSS probability0.13%
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

Improper input validation in IBM Storage Protect 8.1.0.0 through 8.1.17.0 allows local users to interrupt service through a race. IBM has disclosed only that a time-of-check-to-time-of-use operation mishandles input; it has not named the affected file, function, or resource. Local execution is required; IBM reports no confidentiality or integrity impact and does not specify whether the interruption is a hang or crash.

The record

CVE
CVE-2023-33832
Published
Jul 19, 2023
Updated
Oct 21, 2024
Vendor
IBM
Product
IBM Storage Protect
Classifications
CWE-20, CWE-367, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 19, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 21, 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=8.1.0.0 <=8.1.17.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

IBM · IBM Storage Protectversion=8.1.0.0 <=8.1.17.0

Published CVSS scores

4.7NISTCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
6.2IBM CorporationCVSS:3.1/AV:L/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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-367Time-of-check Time-of-use (TOCTOU) Race Condition
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

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