CVE-2018-5200: KMPlayer 4.2.2.15 and earlier have a Heap Based Buffer Overflow Vulnerability

Q: How do I fix CVE-2018-5200?

kmplayer: upgrade to newer than 4.2.2.15. Exact commands for each OS are on this page.

Q: Is CVE-2018-5200 being exploited?

CVE-2018-5200 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2018-5200 affect?

CVE-2018-5200 affects kmplayer. Severity is high (CVSS 7.8). 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. T

This month

HIGH 7.8UPGRADE

CVE-2018-5200 is a high-severity flaw (CVSS 7.8) affecting kmplayer. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.7% (top 23%)
CISA exploited list	No
Weakness	CWE-119
Published	2018-12-20
Last modified	2026-06-17

Publisher (CNA): KrCERT/CC · Vendor: pandora

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-12-20 14:29 UTCPublished CVE record published
2026-06-17 01:59 UTCUpdated Record last modified

pandora kmplayer UPGRADE

Affected: <= 4.2.2.15

Fixed in: newer than 4.2.2.15

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy kmplayer || rpm -q kmplayer || kmplayer --version

2. UPGRADE to newer than 4.2.2.15 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade kmplayer

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade kmplayer

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-5200?

kmplayer: upgrade to newer than 4.2.2.15. Exact commands for each OS are on this page.

Is CVE-2018-5200 being exploited?

CVE-2018-5200 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-5200 affect?

CVE-2018-5200 affects kmplayer. Severity is high (CVSS 7.8). 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. T

How urgent is CVE-2018-5200?

Priority 47/100. High severity

Related CVEs

CVE-2024-41200 MEDIUM 5.5 DOWNGRADE A segmentation fault in KMPlayer v4.2.2.65 allows attackers to cause a Denial of Service (DoS) via a crafted A
CVE-2023-1745 MEDIUM 5.3 DOWNGRADE A vulnerability, which was classified as problematic, has been found in KMPlayer 4.2.2.73
CVE-2019-9133 MEDIUM 5.5 UPGRADE MITIGATE When processing subtitles format media file, KMPlayer version 2018.12.24.14 or lower doesn't check object size
CVE-2019-17259 HIGH 7.8 DOWNGRADE KMPlayer 4.2.2.31 allows a User Mode Write AV starting at utils!src_new+0x000000000014d6ee.

References

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