IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 is vulnerable to a denial of service, caused by improper handling of Secure Sockets Layer (SSL) renegotiation requests
Published Jul 1, 2020
5.3
MEDIUMCVSS 3.1
EPSS 2.16%
Description
IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 is vulnerable to a denial of service, caused by improper handling of Secure Sockets Layer (SSL) renegotiation requests. By sending specially-crafted requests, a remote attacker could exploit this vulnerability to increase the resource usage on the system. IBM X-Force ID: 178507.
Affected products
-
- Version 10.1StatusaffectedConstraints-
- Version 10.5StatusaffectedConstraints-
- Version 11.1StatusaffectedConstraints-
- Version 11.5StatusaffectedConstraints-
- Version 9.7StatusaffectedConstraints-
- 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 | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| IBM | DB2 for Linux- UNIX and Windows | 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:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS:3.0/I:N/AV:N/S:U/C:N/UI:N/PR:N/A:L/AC:L/RC:C/RL:O/E:U
1 other source (NVD) ▾
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
AV:N/AC:L/Au:N/C:N/I:N/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 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 2.16% (0.02161) | 81.57th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.16% (0.02161) | 79.77th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.74% (0.00744) | 71.29th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.13% (0.00128) | 49.12th | v3 (v2023.03.01) |
| Nov 3, 2023 | 0.13% (0.00128) | 47.21th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.13% (0.00125) | 45.20th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.05% (0.01055) | 50.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.50% (0.04499) | 74.08th | v2 (v2022.01.01) |
| Feb 3, 2022 | 79.98% (0.79984) | 99.85th | v1 |
| Jan 6, 2022 | 79.98% (0.79984) | 99.85th | v1 |
| Sep 1, 2021 | 47.11% (0.47107) | 99.53th | v1 |
| Apr 14, 2021 | 47.11% (0.47107) | 0.00th | v1 |
No CWE recorded.
References (2)
- https://exchange.xforce.ibmcloud.com/vulnerabilities/178507 vdb-entryx_refsource_XFVDB EntryVendor Advisory
- https://www.ibm.com/support/pages/node/6242350 x_refsource_CONFIRMPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://exchange.xforce.ibmcloud.com/vulnerabilities/178507 | vdb-entryx_refsource_XFVDB EntryVendor Advisory | |
| https://www.ibm.com/support/pages/node/6242350 | x_refsource_CONFIRMPatchVendor Advisory |
Change history (0)
No recorded changes yet.