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CVE-2019-5544

critical

Description

OpenSLP as used in ESXi and the Horizon DaaS appliances has a heap overwrite issue. VMware has evaluated the severity of this issue to be in the Critical severity range with a maximum CVSSv3 base score of 9.8.

References

https://security.gentoo.org/glsa/202005-12

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZPXXJZLPLAQULBCJVI5NNWZ3PGWXGXWG/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DA3LYAJ2NRKMOZLZOQNDJ5TNQRFMWGHF/

https://access.redhat.com/errata/RHSA-2020:0199

https://access.redhat.com/errata/RHSA-2019:4240

http://www.openwall.com/lists/oss-security/2019/12/11/2

http://www.openwall.com/lists/oss-security/2019/12/10/2

https://github.com/vpxuser/VMware-ESXI-OpenSLP-Exploit

https://github.com/dgh05t/VMware_ESXI_OpenSLP_PoCs

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-5544

https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-15119

http://www.vmware.com/security/advisories/VMSA-2019-0022.html

Details

Source: Mitre, NVD

Published: 2019-12-06

Updated: 2026-06-17

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

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

Severity: Critical

EPSS

EPSS: 0.97258