No exploitation reported

CVE-2023-33850

No exploitation reported by the sources we read.

Published2023-08-22
WeaknessCWE-203

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC

2023-08-2221:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-33850?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-33850?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · CISA-ADP

Ibm txseries for multiplatformversion to verify

Branch	Affected	Fixed in	Source
8.1	= 8.1	no fix published	NVD · CISA-ADP
9.1	= 9.1	no fix published	NVD
8.2	= 8.2	no fix published	NVD

Ibm cics txversion to verify

Branch	Affected	Fixed in	Source
11.1	= 11.1	no fix published	NVD · CISA-ADP
10.1	= 10.1	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

www.ibm.comVendor Advisory
www.ibm.comVendor Advisory
www.ibm.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2024-10-03
OpenCVESSVC decisionnone—
CNACVSS 3.17.5read 2026-10-23
NVDCVSS 3.17.5read 2026-10-23
CNAweakness (CWE)CWE-203read 2026-10-23
NVDweakness (CWE)CWE-203read 2026-10-23
FIRST EPSSEPSS score1.2 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published: 2023-08-22
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2023-33850?

Is CVE-2023-33850 actively exploited?

Active exploitation of CVE-2023-33850 has not been confirmed. Its EPSS score was 1.2% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-33850?

CVE-2023-33850 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

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