CVE-2020-24214
Attackers can send a crafted unauthenticated RTSP request to cause a buffer overflow and application crash.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 35.4%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 35.39% probability · 98th percentile
- Public exploits
- 1 in Exploit-DB · first 19 October 2020
- CISA KEV
- Not listed
- Affected
- szuray/iptv\/h.264 video encoder firmware · szuray/iptv\/h.265 video encoder firmware · jtechdigital/h.264 iptv encoder 1080p\@60hz firmware · provideoinstruments/vecaster-hd-h264 firmware · provideoinstruments/vecaster-hd-hevc firmware · provideoinstruments/vecaster-4k-hevc firmware · provideoinstruments/vecaster-hd-sdi firmware
- Source
- cve@mitre.org
EPSS 35.4% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://packetstormsecurity.com/files/159605/HiSilicon-Video-Encoder-Buffer-Overflow-Denial-Of-Service.htmlExploit, Third Party Advisory
- https://kojenov.com/2020-09-15-hisilicon-encoder-vulnerabilities/Exploit, Third Party Advisory
- https://www.kb.cert.org/vuls/id/896979Third Party Advisory, US Government Resource
- http://packetstormsecurity.com/files/159605/HiSilicon-Video-Encoder-Buffer-Overflow-Denial-Of-Service.htmlExploit, Third Party Advisory
- https://kojenov.com/2020-09-15-hisilicon-encoder-vulnerabilities/Exploit, Third Party Advisory
- https://www.kb.cert.org/vuls/id/896979Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.