CVE-2023-40547

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

5.42% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 92.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-26.

Red Hat severity

Important. 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

2024-01-25 15:54Z2 YR AGO

Last updated

2026-06-26 09:43Z2 MO AGO

Reserved

2023-08-15

Assigning CNA

redhat

Record state

PUBLISHED

Severity

High (CVSS 8.3)

CNA CVSS vector

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

Weaknesses

• CWE-787Out-of-bounds WriteBase
• CWE-346Origin Validation ErrorClass

Data version

5.2

Document digest

bf90c6ab7b9e70868bfcd5eca182d62880679014348fc7bb769b96ca14e4d465

• access.redhat.comRHSA-2024:1834https://access.redhat.com/errata/RHSA-2024:1834vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2024:1835https://access.redhat.com/errata/RHSA-2024:1835vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2024:1873https://access.redhat.com/errata/RHSA-2024:1873vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2024:1876https://access.redhat.com/errata/RHSA-2024:1876vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2024:1883https://access.redhat.com/errata/RHSA-2024:1883vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2024:1902https://access.redhat.com/errata/RHSA-2024:1902vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2024:1903https://access.redhat.com/errata/RHSA-2024:1903vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2024:1959https://access.redhat.com/errata/RHSA-2024:1959vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2024:2086https://access.redhat.com/errata/RHSA-2024:2086vendor-advisoryx_refsource_REDHAT
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2023-40547vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2234589https://bugzilla.redhat.com/show_bug.cgi?id=2234589issue-trackingx_refsource_REDHAT
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2024/01/26/1
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/05/msg00009.html