CVE-2013-4981

Exp

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.

Published: 2014-03-03 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-4981 is rated High Exploit Risk (83.3/100): CVSS Critical severity, with high exploitation likelihood (EPSS 26.80%, 96th percentile). 3 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2013-4981

EDB-ID Source Kind Published Link
27942 exploit_db edb 2013-08-29 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2013-4981

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-10-17 28.18% 26.80% -1.38%
2 2025-08-24 9.59% 28.18% +18.59%
3 2025-03-30 — 9.59% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-4981

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.0 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 8.5 [email protected]

Weakness enumeration for CVE-2013-4981

Affected software / configurations for CVE-2013-4981

Vendor Product Version Raw CPE
avtech avn801_dvr_firmware <= 1017-1003-1009-1003 cpe:2.3:o:avtech:avn801_dvr_firmware:*:*:*:*:*:*:*:*
avtech avn801_dvr — cpe:2.3:h:avtech:avn801_dvr:-:*:*:*:*:*:*:*

References for CVE-2013-4981

cvelogic Threat Intelligence