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Actively exploited · Published Feb 6, 2018 · Assigned by adobe

CVE-2018-4878

High 7.8 Exploited Ransomware

In plain English

A high-severity use-after-free in Adobe Flash Player before 28.0.0.161. Attackers are actively exploiting it in the wild (listed by CISA on November 3, 2021). It has been used in ransomware campaigns. The chance it is exploited in the next 30 days is estimated at 90.3% (higher than 99.8% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. The impacted product is end-of-life and should be disconnected if still in use.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)90.3%top 0.2% of all CVEs
Exploited in the wildYesCISA KEV since Nov 3, 2021
Attack tooling1Public PoC

CISA guidance

The impacted product is end-of-life and should be disconnected if still in use.

Federal agencies must remediate by May 3, 2022.

Official 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.

Affected products (as reported)

VendorProductVersions
n/a Adobe Flash Player before 28.0.0.161 Adobe Flash Player before 28.0.0.161

Weakness: CWE-416 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References