What’s Vulnerable › Vulnerabilities

CVE-2019-9133: KMPlayer Subtitles parser Heap Overflow Vulnerability

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-04-09 · updated 2026-06-17
• Weakness: CWE-190

Description

When processing subtitles format media file, KMPlayer version 2018.12.24.14 or lower doesn't check object size correctly, which leads to integer underflow then to memory out-of-bound read/write. An attacker can exploit this issue by enticing an unsuspecting user to open a malicious file.

Affected products

• Fedoraproject Fedora: 29, 30
• Kmplayer: through 2018.12.24.14

References

• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4D55BLGBNWNIMNI5N57WDPAFQCUIM6XX/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VT5HBIKH64YRZFFAPXGOTHIQJHSTQJF7/
• https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=34991
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4D55BLGBNWNIMNI5N57WDPAFQCUIM6XX/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VT5HBIKH64YRZFFAPXGOTHIQJHSTQJF7/
• https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=34991

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