CVE-2019-12855

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

1.81% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 77.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.0/AV:N/AC:H/PR:N/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

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

2019-06-16 11:11Z7 YR AGO

Last updated

2024-08-04 23:32Z2 YR AGO

Reserved

2019-06-16

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-295Improper Certificate ValidationBase

Data version

5.1

Document digest

93b9e502df2aaa311e5a27394ed7dd293115c401d0b4bb6c756cfbfe67492a0d

• twistedmatrix.comhttps://twistedmatrix.com/trac/ticket/9561x_refsource_MISC
• github.comhttps://github.com/twisted/twisted/pull/1147x_refsource_MISC
• lists.fedoraproject.orgFEDORA-2019-d480909528https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PLTZDMFBNFSJMBXYJNGJHENJA4H2TSMZ/vendor-advisoryx_refsource_FEDORA
• lists.opensuse.orgopenSUSE-SU-2019:2068http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00013.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgopenSUSE-SU-2019:2110http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00028.htmlvendor-advisoryx_refsource_SUSE
• usn.ubuntu.comUSN-4308-2https://usn.ubuntu.com/4308-2/vendor-advisoryx_refsource_UBUNTU
• usn.ubuntu.comUSN-4308-1https://usn.ubuntu.com/4308-1/vendor-advisoryx_refsource_UBUNTU
• www.oracle.comhttps://www.oracle.com/security-alerts/cpuapr2020.htmlx_refsource_MISC