CVE-2018-4877

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

8.35% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 94.5% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.0/AV:N/AC:L/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

Critical. 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

2018-02-06 20:00Z8 YR AGO

Last updated

2024-08-05 05:18Z2 YR AGO

Reserved

2018-01-03

Assigning CNA

adobe

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

004b2463ef43f5e948fb7293b960ae021f1a82a2c8d72dadd3f55240c2c4d5ec

• helpx.adobe.comhttps://helpx.adobe.com/security/products/flash-player/apsb18-03.htmlx_refsource_MISC
• access.redhat.comRHSA-2018:0285https://access.redhat.com/errata/RHSA-2018:0285vendor-advisoryx_refsource_REDHAT
• www.securityfocus.com102930http://www.securityfocus.com/bid/102930vdb-entryx_refsource_BID