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Public proof of concept

CVE-2020-24214

A public proof of concept exists; no exploitation attested.

  • Published2020-10-06

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An issue was discovered in the box application on HiSilicon based IPTV/H.264/H.265 video encoders. Attackers can send a crafted unauthenticated RTSP request to cause a buffer overflow and application crash. The device will not be able to perform its main purpose of video encoding and streaming for up to a minute, until it automatically reboots. Attackers can send malicious requests once a minute, effectively disabling the device.

Timeline

dates in UTC
  1. 2020-10-19Exploit-DB entryExploit-DB

Versions per branch

NVD
Jtechdigital h.264 iptv encoder 1080p\@60hz firmwareversion to verify
BranchAffectedFixed in
—all versionsno fix published
Provideoinstruments vecaster-4k-hevc firmwareversion to verify
BranchAffectedFixed in
—all versionsno fix published
Provideoinstruments vecaster-hd-h264 firmwareversion to verify
BranchAffectedFixed in
—all versionsno fix published

4 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

read 2026-11-04 22:56 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
EDB-48903
Exploit-DB
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVSS 3.19.8read 2026-10-23
  • NVDCVSS 2.07.5read 2026-10-23
  • FIRST EPSSEPSS score35.4 %read 2026-11-04
  • Exploit-DBdetectionread 2026-11-04

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2020-10-06
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2020-24214?

An issue was discovered in the box application on HiSilicon based IPTV/H.264/H.265 video encoders. Attackers can send a crafted unauthenticated RTSP request to cause a buffer overflow and application crash. The device will not be able to perform its main purpose of video encoding and streaming for up to a minute, until it automatically reboots. Attackers can send malicious requests once a minute, effectively disabling the device.

Is CVE-2020-24214 actively exploited?

Active exploitation of CVE-2020-24214 has not been confirmed. Its EPSS score was 35.4% on 2026-11-04, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-24214?

CVE-2020-24214 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record