CVE-2023-0433

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• 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

0.51% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 43.6% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-09-24.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

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

2023-01-21 00:00Z3 YR AGO

Last updated

2025-04-02 13:55Z1 YR AGO

Reserved

2023-01-21

Assigning CNA

@huntrdev

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weaknesses

• CWE-122Heap-based Buffer OverflowVariant

Data version

5.1

Document digest

633776b3578c8c14a7ae4e6ddee2c4b6482861d0ef86253fde6d3da96e61908d

• huntr.devhttps://huntr.dev/bounties/ae933869-a1ec-402a-bbea-d51764c6618e
• github.comhttps://github.com/vim/vim/commit/11977f917506d950b7e0cae558bd9189260b253b
• lists.fedoraproject.orgFEDORA-2023-2db4df65c3https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PZWIJBSQX53P7DHV77KRXJIXA4GH7XHC/vendor-advisory
• lists.fedoraproject.orgFEDORA-2023-93fb5b08ebhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4EX6N2DB75A73MQGVW3CS4VTNPAYVM2M/vendor-advisory
• support.apple.comhttps://support.apple.com/kb/HT213677
• support.apple.comhttps://support.apple.com/kb/HT213675
• support.apple.comhttps://support.apple.com/kb/HT213670
• seclists.org20230327 APPLE-SA-2023-03-27-3 macOS Ventura 13.3http://seclists.org/fulldisclosure/2023/Mar/17mailing-list
• seclists.org20230327 APPLE-SA-2023-03-27-4 macOS Monterey 12.6.4http://seclists.org/fulldisclosure/2023/Mar/18mailing-list
• seclists.org20230327 APPLE-SA-2023-03-27-5 macOS Big Sur 11.7.5http://seclists.org/fulldisclosure/2023/Mar/21mailing-list