SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2013-4981

Buffer overflow in cgi-bin/user/Config.cgi in AVTECH AVN801 DVR with firmware 1017-1003-1009-1003 and earlier, and possibly other devices, allows remote attackers to cause a denial of service (device crash) and possibly execute arbitrary code via a long…

EXPLOIT ✓HIGH 9.0EPSS 5.99%

Does this matter?

A public exploit is published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 6.0%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use.

Description

Buffer overflow in cgi-bin/user/Config.cgi in AVTECH AVN801 DVR with firmware 1017-1003-1009-1003 and earlier, and possibly other devices, allows remote attackers to cause a denial of service (device crash) and possibly execute arbitrary code via a long string in the Network.SMTP.Receivers parameter.

CVSS 2.0
9.0 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:C
EPSS
5.99% probability · 93th percentile
Public exploits
1 in Exploit-DB · verified · first 29 August 2013
CISA KEV
Not listed
Weakness
CWE-119
Affected
avtech/avn801 dvr firmware · avtech/avn801 dvr
Source
cve@mitre.org
EPSS trend
0%5%10%26 October 2026: 5.99%26 October 202626 October 2026

EPSS 6.0% since 26 October 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.

EDB-IDTitleTypePublishedVerified
EDB-27942source ↗AVTECH DVR Firmware 1017-1003-1009-1003 - Multiple Vulnerabilitieshardware · Core Securitydos29 August 2013yes

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.