CVE-2020-12663

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

3.59% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 88.4% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2020-05-19 13:48Z6 YR AGO

Last updated

2024-08-04 12:04Z2 YR AGO

Reserved

2020-05-05

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')Base

Data version

5.1

Document digest

250165b1913a1a2808b916644b58cbb77d1a2e3f14c12b3783a20415c7d5c368

• nlnetlabs.nlhttps://nlnetlabs.nl/downloads/unbound/CVE-2020-12662_2020-12663.txtx_refsource_CONFIRM
• www.openwall.com[oss-security] 20200519 Unbound - CVE-2020-12662, CVE-2020-12663http://www.openwall.com/lists/oss-security/2020/05/19/5mailing-listx_refsource_MLIST
• lists.fedoraproject.orgFEDORA-2020-3cfd38fefdhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F5NFROI2OMCZLYRTCNGHGO3TUD32LCIQ/vendor-advisoryx_refsource_FEDORA
• www.debian.orgDSA-4694https://www.debian.org/security/2020/dsa-4694vendor-advisoryx_refsource_DEBIAN
• lists.fedoraproject.orgFEDORA-2020-8e9b62948ehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YJ42N2HBZ3DXMSEC56SWIIOFQGOS5M7I/vendor-advisoryx_refsource_FEDORA
• usn.ubuntu.comUSN-4374-1https://usn.ubuntu.com/4374-1/vendor-advisoryx_refsource_UBUNTU
• lists.opensuse.orgopenSUSE-SU-2020:0912http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00069.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgopenSUSE-SU-2020:0913http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00067.htmlvendor-advisoryx_refsource_SUSE
• security.freebsd.orgFreeBSD-SA-20:19https://security.FreeBSD.org/advisories/FreeBSD-SA-20:19.unbound.ascvendor-advisoryx_refsource_FREEBSD
• lists.debian.org[debian-lts-announce] 20210212 [SECURITY] [DLA 2556-1] unbound1.9 security updatehttps://lists.debian.org/debian-lts-announce/2021/02/msg00017.htmlmailing-listx_refsource_MLIST