CVE-2020-28049

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.41% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 35.6% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2020-11-04 00:00Z5 YR AGO

Last updated

2024-10-15 18:10Z2 YR AGO

Reserved

2020-11-02

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Medium (CVSS 6.3)

CNA CVSS vector

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

Weaknesses

• CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class

Data version

5.1

Document digest

1e8053fc583ae3675df32612538667ed4dd0737da73068ae7aa107af7a5c2a3a

• github.comhttps://github.com/sddm/sddm/releases
• bugzilla.suse.comhttps://bugzilla.suse.com/show_bug.cgi?id=CVE-2020-28049
• github.comhttps://github.com/sddm/sddm/blob/v0.19.0/ChangeLog
• www.debian.orgDSA-4783https://www.debian.org/security/2020/dsa-4783vendor-advisory
• lists.debian.org[debian-lts-announce] 20201106 [SECURITY] [DLA 2436-1] sddm security updatehttps://lists.debian.org/debian-lts-announce/2020/11/msg00009.htmlmailing-list
• lists.opensuse.orgopenSUSE-SU-2020:1870http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00031.htmlvendor-advisory
• lists.fedoraproject.orgFEDORA-2021-7066b95c99https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GT3EX5NSQJJAKY63ENSMEDX6NYZLYY3S/vendor-advisory
• security.gentoo.orgGLSA-202402-02https://security.gentoo.org/glsa/202402-02vendor-advisory