CVE-2023-28321

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 ImpactpartialSuccessful exploitation gives limited 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

1.81% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 76.9% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

Moderate. 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

2023-05-26 00:00Z3 YR AGO

Last updated

2025-01-15 15:54Z1 YR AGO

Reserved

2023-03-14

Assigning CNA

hackerone

Record state

PUBLISHED

Severity

Medium (CVSS 5.9)

CNA CVSS vector

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

Weaknesses

• CWE-295Improper Certificate ValidationBase

Data version

5.1

Document digest

b7353e2fbeadef81af12265d04c7be47e7d06d22e836b3b718d453678f575fb6

• hackerone.comhttps://hackerone.com/reports/1950627
• lists.fedoraproject.orgFEDORA-2023-37eac50e9bhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F4I75RDGX5ULSSCBE5BF3P5I5SFO7ULQ/vendor-advisory
• lists.fedoraproject.orgFEDORA-2023-8ed627bb04https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z2LIWHWKOVH24COGGBCVOWDXXIUPKOMK/vendor-advisory
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20230609-0009/
• support.apple.comhttps://support.apple.com/kb/HT213843
• support.apple.comhttps://support.apple.com/kb/HT213844
• support.apple.comhttps://support.apple.com/kb/HT213845
• seclists.org20230725 APPLE-SA-2023-07-24-6 macOS Big Sur 11.7.9http://seclists.org/fulldisclosure/2023/Jul/52mailing-list
• seclists.org20230725 APPLE-SA-2023-07-24-5 macOS Monterey 12.6.8http://seclists.org/fulldisclosure/2023/Jul/48mailing-list
• seclists.org20230725 APPLE-SA-2023-07-24-4 macOS Ventura 13.5http://seclists.org/fulldisclosure/2023/Jul/47mailing-list
• security.gentoo.orgGLSA-202310-12https://security.gentoo.org/glsa/202310-12vendor-advisory
• lists.debian.org[debian-lts-announce] 20231011 [SECURITY] [DLA 3613-1] curl security updatehttps://lists.debian.org/debian-lts-announce/2023/10/msg00016.htmlmailing-list