CVE-2013-4982

CRITICAL NUCLEI

AVTECH AVN801 DVR Firmware - Authentication Bypass via Captcha

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2013-4982. PoCs published by Core Security. A Nuclei detection template is also available.

AI-analyzed exploit summary The exploit demonstrates three vulnerabilities in AVTECH DVR devices: a buffer overflow in the RTSP packet handler (CVE-2013-4980), a buffer overflow in '/cgi-bin/user/Config.cgi' (CVE-2013-4981), and a CAPTCHA bypass (CVE-2013-4982). Each vulnerability is exploited via crafted network requests, leading to potential remote code execution or security bypass.

Description

AVTECH AVN801 DVR has a security bypass via the administration login captcha

Exploits (1)

exploitdb WORKING POC VERIFIED
by Core Security · textdoshardware
https://www.exploit-db.com/exploits/27942

The exploit demonstrates three vulnerabilities in AVTECH DVR devices: a buffer overflow in the RTSP packet handler (CVE-2013-4980), a buffer overflow in '/cgi-bin/user/Config.cgi' (CVE-2013-4981), and a CAPTCHA bypass (CVE-2013-4982). Each vulnerability is exploited via crafted network requests, leading to potential remote code execution or security bypass.

Classification
Working Poc 100%
Attack Type
Rce | Auth Bypass
Complexity
Trivial
Reliability
Reliable
Target: AVTECH DVR 4CH H.264 (AVN801) firmware 1017-1003-1009-1003
No auth needed
Prerequisites: Network access to the target device
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Nuclei Templates (1)

AVTECH DVR - Login Verification Code Bypass
LOWVERIFIEDby ritikchaddha
Shodan: title:"login" product:"Avtech"
FOFA: app="AVTECH-视频监控"

References (3)

Core 3
Core References
Third Party Advisory, VDB Entry x_refsource_misc
http://www.securityfocus.com/bid/62035
Exploit, Mailing List, Third Party Advisory x_refsource_misc
http://seclists.org/fulldisclosure/2013/Aug/284

Scores

CVSS v3 9.8
EPSS 0.3962
EPSS Percentile 97.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-287
Status published
Products (1)
avtech/avn801_dvr_firmware 1017-1003-1009-1003
Published Dec 27, 2019
Tracked Since Feb 18, 2026