What is CVE-2013-4981?

CVE-2013-4981 is a vulnerability in Avtech Avn801 Dvr, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2014-03-03.

Is CVE-2013-4981 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Avtech Avn801 Dvr

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 string in the Network.SMTP.Receivers parameter.

Vulnerability class: Buffer Overflow

Published 2014-03-03 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 9.0 (High). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.060 (93.1th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.060 · newest: 0.060 · change: -0.000

Affected products

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

seclists.org/fulldisclosure/2013/Aug/284 (mailing-list, Exploit)
www.coresecurity.com/advisories/avtech-dvr-multiple-vulnerabilities (Exploit)
osvdb.org/96693 (vdb-entry)

Frequently asked questions

What is CVE-2013-4981?: CVE-2013-4981 is a vulnerability in Avtech Avn801 Dvr, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2014-03-03.
Is CVE-2013-4981 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.