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CVE-2015-4408

22
FAUCET Score

CVE-2015-4408 describes a buffer overflow vulnerability in Hikvision DS-76xxNI-E1/2 and DS-77xxxNI-E4 NVR devices running firmware versions prior to 3.4.0. This flaw allows remote authenticated attackers to trigger a denial of service by sending a specially crafted HTTP request, leading to service interruption. Rated with a CVSS score of 6.5 (Medium), the vulnerability requires authentication but has low attack complexity, impacting availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.3.4CPE matchmatch criteria
cpe:2.3:o:hikvision:ds-76xxx_series_firmware:*:*:*:*:*:*:*:*
<= 3.3.4CPE matchmatch criteria
cpe:2.3:o:hikvision:ds-77xxx_series_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.28%
Probability of exploitation in next 30 days
EPSS Percentile
67.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0128 is in the 81st percentile among its peer group of 21,974 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

hikvision.com / En/Press-Release-details_435_i1023.html
PatchVendor Advisory