THREATPORT/VULNERABILITY/CVE-2020-24990
HIGH SEVERITY

CVE-2020-24990

Q Sys Core Manager vulnerability

CVSS
7.5
EPSS
3.7%
EPSS pct
89th
Exploited
No known
An issue was discovered in QSC Q-SYS Core Manager 8.2.1. By utilizing the TFTP service running on UDP port 69, a remote attacker can perform a directory traversal and obtain operating system files via a TFTP GET request, as demonstrated by reading /etc/passwd or /proc/version.
Affected vendor
Qsc
Affected product
Q Sys Core Manager
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness type (CWE)
Published
2020-10-28

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 3.7% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2020-24990

  • Confirm whether Qsc Q Sys Core Manager is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2020-24990.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-24990

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-24990 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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