CVE Intelligence
Skip to main content
HIGH

CVE-2024-21886

CVE-2024-21886 — Xorg-x11-server: heap buffer overflow in disabledevice

A heap buffer overflow flaw was found in the DisableDevice function in the X.Org server. This issue may lead to an application crash or, in some circumstances, remote code execution in SSH X11 forwarding environments.

Published Updated Sources: cvelistV5, redhat

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.

Exploitation

Unreported

no source claims exploitation

EPSS

1%

chance of exploitation in 30 days

Affects

redhat

18 products listed

CVSS base

7.8

HIGH

CISA SSVC assessment

Three decision points CISA publishes for the CVEs it assesses · SSVC 2.0.3. A stakeholder decision, not a severity score.

CISA

Exploitation

None

none · proof-of-concept · active

Automatable

Yes

can an attacker script all four kill-chain steps

Technical impact

Partial

partial · total control of the vulnerable component

Affected scope

The catalog records vendors and products as separate lists, not pairs, so which product belongs to which vendor is not something this page can say.

Vendors (2)

redhatxorg

Products (18)

xorg serverred hat enterprise linux 6 extended lifecycle support extensionred hat enterprise linux 7red hat enterprise linux 8red hat enterprise linux 8 2 advanced update supportred hat enterprise linux 8 2 telecommunications update servicered hat enterprise linux 8 2 update services for sap solutionsred hat enterprise linux 8 4 advanced mission critical update supportred hat enterprise linux 8 4 telecommunications update servicered hat enterprise linux 8 4 update services for sap solutionsred hat enterprise linux 8 6 extended update supportred hat enterprise linux 8 8 extended update supportred hat enterprise linux 9red hat enterprise linux 9 0 extended update supportred hat enterprise linux 9 2 extended update supportred hat enterprise linux 6xserverxwayland

Every base score collected

Sources score independently and disagree; each row says who scored it and under which version.

ScoreVersionSeverityExpl.ImpactSource
7.8CVSS 3.1HIGH——cvelistV5

Weakness & attack patterns

  • CWE-122

References

22 on the record

Elsewhere on this site

  • redhatevery CVE for this vendor
  • xorgevery CVE for this vendor
  • CWE-122other pages naming this weakness

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

  • No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
  • No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
  • No exploit packet captures, log samples, or incident case IDs supplied.