CVE-2018-4878
Adobe Flash Player before 28.0.0.161
Published 6 Feb 2018 · updated 17 Jun 2026 · Analyzed
7.8 High · CVSS 3.1, NVD
Exploited in the wild
CISA added this to its Known Exploited Vulnerabilities catalog on 3 Nov 2021, with a remediation deadline of 3 May 2022 for US federal agencies. It has been used in ransomware campaigns.
Required action: The impacted product is end-of-life and should be disconnected if still in use.
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 handling of listener objects. A successful attack can lead to arbitrary code execution. This was exploited in the wild in January and February 2018.
References
- blog.talosintelligence.com/2018/02/group-123-goes-wild.html · Technical Description, Third Party Advisory
- www.securityfocus.com/bid/102893 · Broken Link
- www.securitytracker.com/id/1040318 · Broken Link
- access.redhat.com/errata/RHSA-2018:0285 · Third Party Advisory
- blog.morphisec.com/flash-exploit-cve-2018-4878-spotted-in-the-wild-massive-malspam-campaign · Third Party Advisory
- github.com/InQuest/malware-samples/tree/master/CVE-2018-4878-Adobe-Flash-DRM-UAF-0day · Third Party Advisory
- github.com/vysec/CVE-2018-4878 · Third Party Advisory
- helpx.adobe.com/security/products/flash-player/apsb18-03.html · Vendor Advisory
- securingtomorrow.mcafee.com/mcafee-labs/hackers-bypassed-adobe-flash-protection-mechanism/ · Exploit, Third Party Advisory
- threatpost.com/adobe-flash-player-zero-day-spotted-in-the-wild/129742/ · Third Party Advisory
- www.darkreading.com/threat-intelligence/adobe-flash-vulnerability-reappears-in-malicious-word-files/d/d-id/1331139 · Press/Media Coverage, Third Party Advisory
- www.exploit-db.com/exploits/44412/ · Exploit, Third Party Advisory, VDB Entry
- www.fireeye.com/blog/threat-research/2018/02/attacks-leveraging-adobe-zero-day.html · Third Party Advisory
- www.trendmicro.com/vinfo/us/security/news/vulnerabilities-and-exploits/north-korean-hackers-allegedly-exploit-adobe-flash-player-vulnerability-cve-2018-4878-against-south-korean-targets · Technical Description, Third Party Advisory
- github.com/cisagov/vulnrichment/issues/196 · Issue Tracking
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-4878 · Third Party Advisory, US Government Resource