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CVE-2020-14346

Status: ModifiedHigh (7.8)—

A flaw was found in xorg-x11-server before 1.20.9. An integer underflow in the X input extension protocol decoding in the X server may lead to arbitrary access of memory contents. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (3)

Canonical — Ubuntu LinuxRedhat — Enterprise LinuxX.org — X Server

CWEs

References

Raw JSON (NVD)

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    },
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    }
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  "lastModified": "2026-06-17T02:54:35.823",
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