CVE-2023-33855 json
IBM Common Cryptographic Architecture information disclosure
published 2024-03-26 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-38005
- cvss
- 3.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 39%
- public exploits
- 0
- none known
Summary
Under certain conditions, RSA operations performed by IBM Common Cryptographic Architecture (CCA) 7.0.0 through 7.5.36 may exhibit non-constant-time behavior. This could allow a remote attacker to obtain sensitive information using a timing-based attack. IBM X-Force ID: 257676.
Patch / fix
- ibm common_cryptographic_architecture 7.5.37
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected products
- IBM Common Cryptographic Architecture
Classification
- Weakness
-
- CWE-385 Covert Timing Channel
References
-
ibm.com
/support/pages/node/7145168
vendor-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/257676
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2023-33855
- NVD CVE-2023-33855
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.