CVE-2023-6478

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.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• 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

1.63% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 74.1% of scored records. A rank, not a probability.

NVD base score

7.5 (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:N/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-23.

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

2023-12-13 06:27Z2 YR AGO

Last updated

2026-06-23 17:19Z2 MO AGO

Reserved

2023-12-04

Assigning CNA

redhat

Record state

PUBLISHED

Severity

High (CVSS 7.6)

CNA CVSS vector

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

Weaknesses

• CWE-190Integer Overflow or WraparoundBase

Data version

5.2

Document digest

1d3b45a68c8ecbc6fd1843b0015d0cafc8a0dc42dc882f660527da2c1ad41196

• access.redhat.comRHSA-2023:7886https://access.redhat.com/errata/RHSA-2023:7886vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2024:0006https://access.redhat.com/errata/RHSA-2024:0006vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2024:0009https://access.redhat.com/errata/RHSA-2024:0009vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2024:0010https://access.redhat.com/errata/RHSA-2024:0010vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2024:0014https://access.redhat.com/errata/RHSA-2024:0014vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2024:0015https://access.redhat.com/errata/RHSA-2024:0015vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2024:0016https://access.redhat.com/errata/RHSA-2024:0016vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2024:0017https://access.redhat.com/errata/RHSA-2024:0017vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2024:0018https://access.redhat.com/errata/RHSA-2024:0018vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2024:0020https://access.redhat.com/errata/RHSA-2024:0020vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2024:2169https://access.redhat.com/errata/RHSA-2024:2169vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2024:2170https://access.redhat.com/errata/RHSA-2024:2170vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2024:2995https://access.redhat.com/errata/RHSA-2024:2995vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2024:2996https://access.redhat.com/errata/RHSA-2024:2996vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2025:12751https://access.redhat.com/errata/RHSA-2025:12751vendor-advisoryx_refsource_REDHAT
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2023-6478vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2253298https://bugzilla.redhat.com/show_bug.cgi?id=2253298issue-trackingx_refsource_REDHAT
• gitlab.freedesktop.orghttps://gitlab.freedesktop.org/xorg/xserver/-/commit/14f480010a93ff962fef66a16412fafff81ad632
• lists.x.orghttps://lists.x.org/archives/xorg-announce/2023-December/003435.html
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/12/13/1
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2023/12/msg00008.html
• lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6R63Z6GIWM3YUNZRCGFODUXLW3GY2HD6/
• lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7PP47YXKM5ETLCYEF6473R3VFCJ6QT2S/
• lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IFHV5KCQ2SVOD4QMCPZ5HC6YL44L7YJD/
• lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LJDFWDB7EQVZA45XDP7L5WRSRWS6RVRR/
• security.gentoo.orghttps://security.gentoo.org/glsa/202401-30
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20240125-0003/
• www.debian.orghttps://www.debian.org/security/2023/dsa-5576