CVE-2021-4010
HIGH
7.8
CVSS Score
Published: December 17, 2021 at 12:00 AM UTC
Updated: June 17, 2026 at 04:18 AM UTC
4 products affected across 4 vendorsDebian LinuxFedoraX server
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Severity
HIGH7.8
Exploit prediction
EPSS 0.6%
Description
A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in the SProcScreenSaverSuspend function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%Affected range stops below 1.20.14, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKLSZCY47QK4RCJFXITYFALCGPJAFXOK/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NXTRPFEQLFZ6NT2LPLZEID664RGC3OCC/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PDHYZM6FII35JA7J275MFCJO6ADJUPQX/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T57DCF726O5LLTST4NBL5PQ7DLPB46HT/
- https://lists.x.org/archives/xorg-announce/2021-December/003122.html
References (10)
Vendor Advisory
Source: [email protected]
https://lists.x.org/archives/xorg-announce/2021-December/003122.htmlVendor Advisory
Source: [email protected]
https://lists.x.org/archives/xorg-announce/2021-December/003124.htmlThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20220114-0004/CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-119
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