SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2015-4407

Buffer overflow on Hikvision NVR DS-76xxNI-E1/2 and DS-77xxxNI-E4 devices before 3.4.0 allows remote authenticated users to cause a denial of service (service interruption) via a crafted HTTP request, aka the PSIA issue.

MEDIUM 6.5EPSS 1.28%

Does this matter?

Lower severity and a low EPSS score (1.28%). Track it; it rarely justifies an emergency change on its own.

Description

Buffer overflow on Hikvision NVR DS-76xxNI-E1/2 and DS-77xxxNI-E4 devices before 3.4.0 allows remote authenticated users to cause a denial of service (service interruption) via a crafted HTTP request, aka the PSIA issue.

CVSS 3.0
6.5 MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
1.28% probability · 70th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-119
Affected
hikvision/ds-76xxx series firmware · hikvision/ds-77xxx series firmware
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 1.28%26 October 202626 October 2026

EPSS 1.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

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