IBM GSKit-Crypto information disclosure
Priority MEDIUM 41CWE-203Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-203.
Summary
IBM GSKit-Crypto could allow a remote attacker to obtain sensitive information, caused by a timing-based side channel in the RSA Decryption implementation. By sending an overly large number of trial messages for decryption, an attacker could exploit this vulnerability to obtain sensitive information.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0117 67th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| IBM | TXSeries for Multiplatforms | 8.1, 8.2, 9.1 | — | No fix listed | CNA |
| IBM | CICS TX Standard | 11.1 | — | No fix listed | CNA |
| IBM | CICS TX Advanced | 10.1, 11.1 | — | No fix listed | CNA |
- TXSeries for Multiplatforms VendorIBM Affected 8.1, 8.2, 9.1 Fixed in — No fix listed CNA
- CICS TX Standard VendorIBM Affected 11.1 Fixed in — No fix listed CNA
- CICS TX Advanced VendorIBM Affected 10.1, 11.1 Fixed in — No fix listed CNA
CPE configurations NVD · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ibm:txseries_for_multiplatform:8.1:*:*:*:*:*:*:* | 8.1 | Vulnerable | IBM |
| cpe:2.3:a:ibm:txseries_for_multiplatform:9.1:*:*:*:*:*:*:* | 9.1 | Vulnerable | IBM |
| cpe:2.3:o:ibm:aix:-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Linux |
| cpe:2.3:a:ibm:txseries_for_multiplatform:8.2:*:*:*:*:*:*:* | 8.2 | Vulnerable | IBM |
| cpe:2.3:o:hp:hp-ux:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Hewlett Packard Enterprise |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:a:ibm:cics_tx:11.1:*:*:*:standard:*:*:* | 11.1 | Vulnerable | IBM |
| cpe:2.3:a:ibm:cics_tx:10.1:*:*:*:advanced:*:*:* | 10.1 | Vulnerable | IBM |
| cpe:2.3:a:ibm:cics_tx:11.1:*:*:*:advanced:*:*:* | 11.1 | Vulnerable | IBM |
- cpe:2.3:a:ibm:txseries_for_multiplatform:8.1:*:*:*:*:*:*:* Versions 8.1 Vulnerable ·IBM
- cpe:2.3:a:ibm:txseries_for_multiplatform:9.1:*:*:*:*:*:*:* Versions 9.1 Vulnerable ·IBM
- cpe:2.3:o:ibm:aix:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux
- cpe:2.3:a:ibm:txseries_for_multiplatform:8.2:*:*:*:*:*:*:* Versions 8.2 Vulnerable ·IBM
- cpe:2.3:o:hp:hp-ux:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Hewlett Packard Enterprise
- cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:a:ibm:cics_tx:11.1:*:*:*:standard:*:*:* Versions 11.1 Vulnerable ·IBM
- cpe:2.3:a:ibm:cics_tx:10.1:*:*:*:advanced:*:*:* Versions 10.1 Vulnerable ·IBM
- cpe:2.3:a:ibm:cics_tx:11.1:*:*:*:advanced:*:*:* Versions 11.1 Vulnerable ·IBM
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-33850
- 2026-10-03 Alias added: GHSA-xxxm-cq2q-5v69
References
More IBM Cics Tx vulnerabilities
- TI-2022-13662 OS command injection in IBM CICS TX Advanced CVSS 3.1CRITICAL 9.8
- TI-2022-15077 Cross-site request forgery in IBM CICS TX Advanced CVSS 3.1HIGH 8.8
- TI-2023-22397 IBM CICS TX cross-site request forgery CVSS 3.1HIGH 8.8
- TI-2024-27804 IBM CICS TX cross-site scripting CVSS 3.1HIGH 7.2
- TI-2024-27802 IBM CICS TX Standard cross-site request forgery CVSS 3.1HIGH 8.8
- TI-2025-01142 IBM CICS TX code execution CVSS 3.1HIGH 7.8
Sources
- CVE-2023-33850 · CVE Program
- CVE-2023-33850 · NVD
- FIRST EPSS
- GHSA-xxxm-cq2q-5v69 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences