IBM MQ vulnerabilities: known CVEs & security history
IBM · Messaging / Queue · 48 tracked CVEs · 0 actively exploited · updated June 2026 · what is a CVE? →
This is the full list of known vulnerabilities (CVEs) across all IBM MQ release lines — 48 in total. A CVE here doesn't mean your version is affected — check IBM MQ's current status and the safe version to run.
Known IBM MQ CVEs
Actively-exploited and most-severe first. Open any CVE for full details.
| CVE | Severity | CVSS | EPSS | Year |
|---|---|---|---|---|
| CVE-2020-4682 | critical | 9.8 | 8% | 2021 |
| CVE-2022-22489 | critical | 9.1 | 1% | 2022 |
| CVE-2025-36128 | high | 7.5 | 0% | 2025 |
| CVE-2024-31912 | high | 7.5 | 0% | 2024 |
| CVE-2024-25015 | high | 7.5 | 1% | 2024 |
| CVE-2024-25016 | high | 7.5 | 1% | 2024 |
| CVE-2021-39034 | high | 7.5 | 1% | 2022 |
| CVE-2020-4870 | high | 7.5 | 2% | 2020 |
| CVE-2020-4310 | high | 7.5 | 2% | 2020 |
| CVE-2019-4762 | high | 7.5 | 2% | 2020 |
| CVE-2019-4055 | high | 7.5 | 2% | 2019 |
| CVE-2019-4227 | high | 7.3 | 1% | 2019 |
| CVE-2024-35156 | medium | 6.5 | 1% | 2024 |
| CVE-2024-35155 | medium | 6.5 | 1% | 2024 |
| CVE-2021-38875 | medium | 6.5 | 1% | 2021 |
| CVE-2020-4931 | medium | 6.5 | 1% | 2021 |
| CVE-2020-4320 | medium | 6.5 | 1% | 2020 |
| CVE-2020-4267 | medium | 6.5 | 1% | 2020 |
| CVE-2019-4656 | medium | 6.5 | 2% | 2020 |
| CVE-2019-4614 | medium | 6.5 | 2% | 2020 |
| CVE-2019-4378 | medium | 6.5 | 2% | 2019 |
| CVE-2019-4261 | medium | 6.5 | 3% | 2019 |
| CVE-2024-52898 | medium | 6.2 | 0% | 2025 |
| CVE-2024-52897 | medium | 6.2 | 0% | 2024 |
| CVE-2024-52896 | medium | 6.2 | 0% | 2024 |
| CVE-2023-28514 | medium | 6.2 | 0% | 2023 |
| CVE-2024-35116 | medium | 5.9 | 1% | 2024 |
| CVE-2024-31919 | medium | 5.9 | 0% | 2024 |
| CVE-2023-28513 | medium | 5.9 | 1% | 2023 |
| CVE-2019-4568 | medium | 5.9 | 1% | 2020 |
| CVE-2025-0985 | medium | 5.5 | 0% | 2025 |
| CVE-2024-54175 | medium | 5.5 | 0% | 2025 |
| CVE-2022-22321 | medium | 5.5 | 0% | 2022 |
| CVE-2021-38949 | medium | 5.5 | 0% | 2021 |
| CVE-2020-4338 | medium | 5.5 | 0% | 2020 |
| CVE-2019-4719 | medium | 5.5 | 0% | 2020 |
| CVE-2019-4619 | medium | 5.5 | 0% | 2020 |
| CVE-2019-4049 | medium | 5.5 | 0% | 2019 |
| CVE-2021-38986 | medium | 5.4 | 0% | 2022 |
| CVE-2018-1836 | medium | 5.4 | 1% | 2019 |
| CVE-2023-45177 | medium | 5.3 | 1% | 2024 |
| CVE-2022-31772 | medium | 5.3 | 1% | 2022 |
| CVE-2018-1883 | medium | 5.3 | 2% | 2018 |
| CVE-2025-36100 | medium | 5.1 | 0% | 2025 |
| CVE-2023-28950 | medium | 5.1 | 0% | 2023 |
| CVE-2026-1713 | medium | 5 | 0% | 2026 |
| CVE-2019-4655 | medium | 4.3 | 1% | 2019 |
| CVE-2022-42436 | medium | 4 | 0% | 2023 |
Is my IBM MQ version affected?
The list above spans every release. To know whether your version is affected — and the minimum safe version to upgrade to — check it directly.
Check your IBM MQ version → · Monitor IBM MQ for new CVEs →
IBM MQ vulnerabilities — frequently asked
How many known vulnerabilities does IBM MQ have?
IsItPatched tracks 48 CVEs for IBM MQ. 2 are critical-severity and 10 high-severity. These span every release line — what matters is whether the version you run is affected.
Does IBM MQ have any actively-exploited vulnerabilities?
None of IBM MQ's tracked CVEs are currently in CISA's KEV catalog — but new ones can be added at any time, so keep your version current.
What is the most severe IBM MQ vulnerability?
Among tracked issues, CVE-2020-4682 (CRITICAL, CVSS 9.8) ranks highest — a Insecure deserialization weakness.
Is IBM MQ safe to use?
It depends on the version. The latest supported IBM MQ release clears the known issues; older versions may still be affected. Check the exact version you run for a verdict.
CVE data aggregated from NVD, CISA KEV and EPSS (FIRST.org). Related: IBM MQ security status · IBM MQ end-of-life · actively-exploited CVEs. Always verify against IBM's advisories — see our disclaimer.