CVE-2019-18988

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2021-11-03. Federal remediation due 2022-05-03.

SSVC decision

• ExploitationactiveCISA reports credible evidence of active exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited 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

4.71% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 91.0% of scored records. A rank, not a probability.

NVD base score

7.0 (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:H

NVD analysis status

Analyzed. 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

2020-02-07 15:09Z6 YR AGO

Last updated

2025-10-21 23:35Z10 MO AGO

Reserved

2019-11-15

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 7.0)

CNA CVSS vector

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

Weaknesses

• CWE-521Weak Password RequirementsBase

Data version

5.1

Document digest

5e886af741bb4dafc5c8a184fc6e4429e36b5bc98f60f9bae9529a89d42cf84d

• community.teamviewer.comhttps://community.teamviewer.com/t5/Knowledge-Base/tkb-p/Knowledgebase?threadtype=label&labels=Securityx_refsource_MISC
• whynotsecurity.comhttps://whynotsecurity.com/blog/teamviewer/x_refsource_MISC
• twitter.comhttps://twitter.com/Blurbdust/status/1224212682594770946?s=20x_refsource_MISC
• community.teamviewer.comhttps://community.teamviewer.com/t5/Announcements/Specification-on-CVE-2019-18988/td-p/82264x_refsource_MISC
• www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-18988government-resource