What’s Vulnerable › Vulnerabilities

CVE-2020-25712

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-12-15 · updated 2026-06-17
• Weakness: CWE-122

Description

A flaw was found in xorg-x11-server before 1.20.10. A heap-buffer overflow in XkbSetDeviceInfo may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Affected products

• Red Hat Enterprise Linux: 8.0
• xorg-x11-server: before 1.20.10 — fixed in 1.20.10

How to fix

Upgrade to a fixed version: xorg-x11-server 1.20.10. Check the vendor advisory for mitigations.

References

• https://bugzilla.redhat.com/show_bug.cgi?id=1887276
• https://lists.x.org/archives/xorg-announce/2020-December/003066.html
• https://bugzilla.redhat.com/show_bug.cgi?id=1887276
• https://lists.x.org/archives/xorg-announce/2020-December/003066.html

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