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Vulnerability record · CVE-2018-4877 · published 6 February 2018

CVE-2018-4877: Adobe flash player use after free vulnerability

Adobe · Flash Player

A use-after-free vulnerability was discovered in Adobe Flash Player before 28.0.0.161. This vulnerability occurs due to a dangling pointer in the Primetime SDK related to media player's quality of service functionality. A successful attack can lead to arbitrary code execution.

9.8 CVSS 3.0 Critical EPSS 8.3% · top 5.2% CWE-416 · Use after free
9.8CVSS 3.0 base score, v2 10.0
8.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

A use-after-free vulnerability was discovered in Adobe Flash Player before 28.0.0.161. This vulnerability occurs due to a dangling pointer in the Primetime SDK related to media player's quality of service functionality. A successful attack can lead to arbitrary code execution.

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

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/102930 Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2018:0285 Third Party Advisory
https://helpx.adobe.com/security/products/flash-player/apsb18-03.html Vendor Advisory
http://www.securityfocus.com/bid/102930 Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2018:0285 Third Party Advisory
https://helpx.adobe.com/security/products/flash-player/apsb18-03.html Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2018-4877), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.