Answer in brief
CVE-2018-4878 records a High severity vulnerability in CVE Program Container. The current sources mark it as known exploited. The current feed maps n/a/Adobe Flash Player before 28.0.0.161 (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps n/a/Adobe Flash Player before 28.0.0.161 (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| n/a/Adobe Flash Player before 28.0.0.161generic | Adobe Flash Player before 28.0.0.161 | Not reported |
Published upstream
Feb 6, 2018
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 17, 2025
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Nov 3, 2021
Evidence: source:kev:kev:kev:recordA 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.
Quoted source text, attributed separately from HOL analysis.