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CVE-2013-4981

35
FAUCET Score

CVE-2013-4981 is a critical buffer overflow vulnerability affecting AVTECH AVN801 DVRs with firmware 1017-1003-1009-1003 and earlier, potentially impacting other AVTECH devices. This flaw allows unauthenticated remote attackers to trigger a denial of service and possibly execute arbitrary code by sending a crafted long string to the Network.SMTP.Receivers parameter. With a CVSS score of 9.0 and a FAUCET Risk Score of 97/100, it represents a severe risk due to its network-based attack vector and high impact. While not listed in CISA's KEV catalog, an exploit is publicly available on ExploitDB, though there is minimal community discussion or media coverage surrounding this decade-old vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1017-1003-1009-1003CPE matchmatch criteria
cpe:2.3:o:avtech:avn801_dvr_firmware:*:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:h:avtech:avn801_dvr:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.0HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:C

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
8.5
CvssVersion
2.0

Exploit Intelligence

EPSS Score
6.86%
Probability of exploitation in next 30 days
EPSS Percentile
93.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-27942 · Aug 29, 2013
This CVE's current EPSS score of 0.0686 is in the 89th percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

osvdb.org / 96693
seclists.org / fulldisclosure/2013/Aug/284
Exploit
coresecurity.com / advisories/avtech-dvr-multiple-vulnerabilities
Exploit