CVE-2020-12663

Status: ModifiedHigh (7.5)—
Unbound before 1.10.1 has an infinite loop via malformed DNS answers received from upstream servers.
CVSS

Version: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base score: 7.5
Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 3.59%
Percentile among all scored CVEs: 89
Score date: 10/7/2026
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 (5)

Canonical — Ubuntu Linux Debian — Debian Linux Fedoraproject — Fedora Nlnetlabs — Unbound Opensuse — Leap
CWEs

CWE-835
References

Raw JSON (NVD)

Show
{
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    },
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