CVE-2020-1983

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

2.36% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 82.6% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

Moderate. 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

2020-04-22 19:30Z6 YR AGO

Last updated

2024-09-16 19:41Z1 YR AGO

Reserved

2019-12-04

Assigning CNA

palo_alto

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

• CWE-416Use After FreeVariant

Data version

5.1

Document digest

c0b962ab4e0ebe60ea0390c5efc197e0d158ba3bbfa6942a36ba71abc531e7e9

• gitlab.freedesktop.orghttps://gitlab.freedesktop.org/slirp/libslirp/-/issues/20x_refsource_MISC
• gitlab.freedesktop.orghttps://gitlab.freedesktop.org/slirp/libslirp/-/commit/9ac0371bb8c0a40f5d9f82a1c25129660e81df04x_refsource_MISC
• www.debian.orgDSA-4665https://www.debian.org/security/2020/dsa-4665vendor-advisoryx_refsource_DEBIAN
• lists.fedoraproject.orgFEDORA-2020-30c45be10chttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HWFD4MWV3YWIHVHSA2F7FKOLJFL4PHOX/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2020-1608d52724https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKT2MTSINE4NUPG5L6BYH6N23NBNITOL/vendor-advisoryx_refsource_FEDORA
• lists.opensuse.orgopenSUSE-SU-2020:0636http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00022.htmlvendor-advisoryx_refsource_SUSE
• usn.ubuntu.comUSN-4372-1https://usn.ubuntu.com/4372-1/vendor-advisoryx_refsource_UBUNTU
• lists.opensuse.orgopenSUSE-SU-2020:0756http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00001.htmlvendor-advisoryx_refsource_SUSE
• lists.debian.org[debian-lts-announce] 20200629 [SECURITY] [DLA 2262-1] qemu security updatehttps://lists.debian.org/debian-lts-announce/2020/06/msg00032.htmlmailing-listx_refsource_MLIST
• lists.debian.org[debian-lts-announce] 20200726 [SECURITY] [DLA 2288-1] qemu security updatehttps://lists.debian.org/debian-lts-announce/2020/07/msg00020.htmlmailing-listx_refsource_MLIST