A stack-based buffer overflow vulnerability in Trend Micro Apex One, Apex One as a Service and Worry-Free Business Security 10.0 SP1 could allow a local attacker to escalate privileges on affected installations
Published Oct 21, 2021
7.8
HIGHCVSS 3.1
EPSS 0.58%
Description
A stack-based buffer overflow vulnerability in Trend Micro Apex One, Apex One as a Service and Worry-Free Business Security 10.0 SP1 could allow a local attacker to escalate privileges on affected installations. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
Affected products
-
- Version 2019, SaaSStatusaffectedConstraints-
- Version
-
- Version 10.0 SP1StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Trend Micro | Trend Micro Apex One | n/a |
| ||||||
| Trend Micro | Trend Micro Worry-Free Business Security | n/a |
|
- 2019
- 2019
- 10.0
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.58% (0.00578) | 45.59th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.56% (0.00560) | 41.95th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.33% (0.00329) | 53.70th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00045) | 18.07th | v3 (v2023.03.01) |
| May 1, 2024 | 0.04% (0.00045) | 14.67th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00045) | 12.65th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00890) | 30.33th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00890) | 26.62th | v2 (v2022.01.01) |
| Jan 6, 2022 | 1.96% (0.01960) | 49.57th | v1 |
| Jan 5, 2022 | 0.44% (0.00444) | 29.04th | v5 (v2026.06.15) |
| Oct 21, 2021 | 0.44% (0.00444) | 28.28th | v1 |
References (3)
- https://success.trendmicro.com/solution/000289229 x_refsource_MISCPatchVendor Advisory
- https://success.trendmicro.com/solution/000289230 x_refsource_MISCPatchVendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-1221/ x_refsource_MISCThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| https://success.trendmicro.com/solution/000289229 | x_refsource_MISCPatchVendor Advisory | |
| https://success.trendmicro.com/solution/000289230 | x_refsource_MISCPatchVendor Advisory | |
| https://www.zerodayinitiative.com/advisories/ZDI-21-1221/ | x_refsource_MISCThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.