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Fencer Vulns
critical 9.8

CVE-2020-37050 json

Quick Player 1.3 - '.m3l' Buffer Overflow

published 2026-01-30 9 mo ago modified 2026-06-17 4 mo ago also EUVD-2020-30931

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits
0
none known

Summary

Quick Player 1.3 contains a buffer overflow vulnerability that allows attackers to execute arbitrary code by crafting a malicious .m3l file with carefully constructed payload. Attackers can trigger the vulnerability by loading a specially crafted file through the application's file loading mechanism, potentially enabling remote code execution.

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
total
Assessed
9 mo ago

Exploit prediction

0.79% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • exploit-db.com https://www.exploit-db.com/exploits/48564 referenced PoC, tagged "exploit" by a source, unverified
  • web.archive.org https://web.archive.org/web/20201022211753/https://whitecr0wz.github.io/posts/Exploiting-Quick-Player/ referenced PoC, tagged "exploit" by a source, unverified
  • web.archive.org https://web.archive.org/web/20210105222205/https://whitecr0wz.github.io/assets/img/Findings6/18.gif referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 8.4 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 4.0 8.4 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • M.J.M Soft Quick Player

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.