CVE-2021-3472

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

1.05% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 64.1% 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:L/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

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

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

2021-04-26 14:29Z5 YR AGO

Last updated

2024-08-03 16:53Z2 YR AGO

Reserved

2021-03-29

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-191Integer Underflow (Wrap or Wraparound)Base

Data version

5.1

Document digest

1cb9abb2bdda880f1c3895f82278ec9f46dbd2de2903a8d74249dd1d101b1ae1

• www.openwall.com[oss-security] 20210413 X.Org server security advisory: April 13, 2021http://www.openwall.com/lists/oss-security/2021/04/13/1mailing-listx_refsource_MLIST
• lists.debian.org[debian-lts-announce] 20210415 [SECURITY] [DLA 2627-1] xorg-server security updatehttps://lists.debian.org/debian-lts-announce/2021/04/msg00013.htmlmailing-listx_refsource_MLIST
• lists.fedoraproject.orgFEDORA-2021-139f3fc21chttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MO6S5OPXUDYBSRSVWVLFLJ6AFERG4HNY/vendor-advisoryx_refsource_FEDORA
• www.debian.orgDSA-4893https://www.debian.org/security/2021/dsa-4893vendor-advisoryx_refsource_DEBIAN
• lists.fedoraproject.orgFEDORA-2021-0e2981e013https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PEXPCLMVU25AUZTUXC4MYBGPKOAIM5TW/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2021-112d542766https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MDF7TAJE7NPZPNVOXSD5HBIFLNPUOD2V/vendor-advisoryx_refsource_FEDORA
• www.zerodayinitiative.comhttps://www.zerodayinitiative.com/advisories/ZDI-21-463/x_refsource_MISC
• lists.x.orghttps://lists.x.org/archives/xorg-announce/2021-April/003080.htmlx_refsource_CONFIRM
• lists.fedoraproject.orgFEDORA-2021-f7b4c97879https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N63KL3T22HNFT4FJ7VMVF6U5Q4RFJIQF/vendor-advisoryx_refsource_FEDORA
• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1944167x_refsource_MISC
• seclists.orghttps://seclists.org/oss-sec/2021/q2/20x_refsource_MISC
• www.tenable.comhttps://www.tenable.com/plugins/nessus/148701x_refsource_MISC
• gitlab.freedesktop.orghttps://gitlab.freedesktop.org/xorg/xserver/-/commit/7aaf54a1884f71dc363f0b884e57bcb67407a6cdx_refsource_MISC
• security.gentoo.orgGLSA-202104-02https://security.gentoo.org/glsa/202104-02vendor-advisoryx_refsource_GENTOO