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CVE-2018-4878

7.8 · HIGHActively Exploited

A use-after-free vulnerability was discovered in Adobe Flash Player before 28.0.0.161.

Published Feb 6, 2018CWE-416EPSS 89.53%

Overview

CVE-2018-4878 is a high-severity vulnerability. It was published on February 6, 2018 and has a CVSS 3.1 base score of 7.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refblog.talosintelligence.com/2018/02/group-123-goes-wild.htmlRefwww.securityfocus.com/bid/102893Refwww.securitytracker.com/id/1040318Refaccess.redhat.com/errata/RHSA-2018:0285Refblog.morphisec.com/flash-exploit-cve-2018-4878-spotted-in-the-wild-massive-malspam-campaignGitHubgithub.com/InQuest/malware-samples/tree/master/CVE-2018-4878-Adobe-Flash-DRM-UAF-0dayGitHubgithub.com/vysec/CVE-2018-4878Refhelpx.adobe.com/security/products/flash-player/apsb18-03.htmlRefsecuringtomorrow.mcafee.com/mcafee-labs/hackers-bypassed-adobe-flash-protection-mechanism/Refthreatpost.com/adobe-flash-player-zero-day-spotted-in-the-wild/129742/

How CyberStrike helps

Frequently asked questions

What is CVE-2018-4878?

CVE-2018-4878 is a high-severity vulnerability. It was published on February 6, 2018 and has a CVSS 3.1 base score of 7.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

How severe is CVE-2018-4878?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2018-4878?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2018-4878?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-4878 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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