CVE-2018-1000807

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

4.08% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 89.8% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2018-10-08 00:00Z7 YR AGO

Last updated

2024-08-05 12:47Z2 YR AGO

Reserved

2018-09-20

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-416Use After FreeVariant

Data version

5.1

Document digest

3e547e7a473d074e4cd290d740f84df884a915bde6b8f3cfd512759d03a40311

• github.comhttps://github.com/pyca/pyopenssl/pull/723
• access.redhat.comRHSA-2019:0085https://access.redhat.com/errata/RHSA-2019:0085vendor-advisory
• usn.ubuntu.comUSN-3813-1https://usn.ubuntu.com/3813-1/vendor-advisory
• lists.opensuse.orgopenSUSE-SU-2019:1104http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00014.htmlvendor-advisory
• github.comhttps://github.com/pyca/pyopenssl/commit/e73818600065821d588af475b024f4eb518c3509