How severe is CVE-2020-24214?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2020-24214 known to be exploited?

4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Jtechdigital H.264 Iptv Encoder 1080p\@60hz

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.

Published 2020-10-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.354 (98.4th percentile), scored 2026-10-01.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.354 · newest: 0.354 · change: 0.000

Affected products

Public proof-of-concept exploits

References

www.kb.cert.org/vuls/id/896979 (US Government Resource, Third Party Advisory)
kojenov.com/2020-09-15-hisilicon-encoder-vulnerabilities/ (Exploit, Third Party Advisory)
packetstormsecurity.com/files/159605/HiSilicon-Video-Encoder-Buffer-Overflow-De… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-24214?: CVE-2020-24214 is a critical-severity vulnerability in Jtechdigital H.264 Iptv Encoder 1080p\@60hz. CVSS score: 9.8/10. Published 2020-10-06.
How severe is CVE-2020-24214?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2020-24214 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.