CVE-2018-5200: KMPlayer Heap Overflow Vulnerability

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-12-20 · updated 2026-06-17
Weakness: CWE-119

Description

KMPlayer 4.2.2.15 and earlier have a Heap Based Buffer Overflow Vulnerability. It could be exploited with a crafted FLV format file. The problem is that more frame data is copied to heap memory than the size specified in the frame header. This results in a memory corruption and remote code execution.

Affected products

Pandora.tv KMPlayer: through 4.2.2.15

References

https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=30113
https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=30113

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