CVE-2023-33241

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.18% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 67.6% of scored records. A rank, not a probability.

NVD base score

9.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2023-08-09 21:00Z3 YR AGO

Last updated

2024-10-10 14:37Z2 YR AGO

Reserved

2023-05-19

Assigning CNA

Halborn

Record state

PUBLISHED

Severity

Critical (CVSS 9.6)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Weaknesses

• CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')Class

Data version

5.1

Document digest

ed1f2336018dc2dfe7758a8d27b786425836d6c5415929d1c72676e940c64b57

• www.fireblocks.comhttps://www.fireblocks.com/blog/gg18-and-gg20-paillier-key-vulnerability-technical-report/
• github.comhttps://github.com/fireblocks-labs/mpc-ecdsa-attacks-23
• github.comhttps://github.com/fireblocks-labs/safeheron-gg20-exploit-poc
• eprint.iacr.orghttps://eprint.iacr.org/2019/114.pdf
• eprint.iacr.orghttps://eprint.iacr.org/2020/540.pdf