CVE-2023-40660

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

1.03% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 63.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

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

2023-11-06 16:58Z2 YR AGO

Last updated

2025-11-06 22:59Z11 MO AGO

Reserved

2023-08-18

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Medium (CVSS 6.6)

CNA CVSS vector

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

Weaknesses

• CWE-287Improper AuthenticationClass

Data version

5.2

Document digest

2a5b7b354189a83ebf02e31a8558db3d6af4b59131bf17cff8f84dd4093e062b

• access.redhat.comRHSA-2023:7876https://access.redhat.com/errata/RHSA-2023:7876vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2023:7879https://access.redhat.com/errata/RHSA-2023:7879vendor-advisoryx_refsource_REDHAT
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2023-40660vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2240912https://bugzilla.redhat.com/show_bug.cgi?id=2240912issue-trackingx_refsource_REDHAT
• github.comhttps://github.com/OpenSC/OpenSC/issues/2792#issuecomment-1674806651
• github.comhttps://github.com/OpenSC/OpenSC/releases/tag/0.24.0-rc1
• github.comhttps://github.com/OpenSC/OpenSC/wiki/OpenSC-security-advisories
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/12/13/2
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2023/11/msg00024.html
• lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3CPQOMCDWFRBMEFR5VK4N5MMXXU42ODE/
• lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GLYEFIBBA37TK3UNMZN5NOJ7IWCIXLQP/
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/12/msg00026.html