CVE-2018-8434

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

3.49% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 88.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:N/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

2018-09-13 00:00Z7 YR AGO

Last updated

2024-08-05 06:54Z2 YR AGO

Reserved

2018-03-14

Assigning CNA

microsoft

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-20Improper Input ValidationClass
• CWE-200Exposure of Sensitive Information to an Unauthorized ActorClass

Data version

5.1

Document digest

6a3544495ec212ac27b76ad5f542c841d19a000c0b05b74cf2efa3d16d95e793

• portal.msrc.microsoft.comhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8434x_refsource_CONFIRM
• www.securityfocus.com105239http://www.securityfocus.com/bid/105239vdb-entryx_refsource_BID
• www.securitytracker.com1041624http://www.securitytracker.com/id/1041624vdb-entryx_refsource_SECTRACK