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Fencer Vulns
critical 9.8

CVE-2020-24214 in the critical feed json

An issue was discovered in the box application on HiSilicon based IPTV/H.264/H.265 video encoders.

published 2020-10-06 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-16949

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
35.4%
EPSS 35.4% chance of exploitation in 30 days, percentile 98%
public exploits
1
Exploit-DB

Summary

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

  1. Published
  2. First public exploit (EDB-48903)

Exploit prediction

35.39% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-48903 HiSilicon Video Encoders - Unauthenticated RTSP buffer overflow (DoS) webapps, 2020-10-19
  • kojenov.com https://kojenov.com/2020-09-15-hisilicon-encoder-vulnerabilities/ referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/159605/HiSilicon-Video-Encoder-Buffer-Overflow-Denial-Of-Service.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

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.