CVE-2026-57600: Hikvision Camera Information Disclosure

CVE-2026-57600 Overview

CVE-2026-57600 is an input validation vulnerability [CWE-20] in the firmware of certain Hikvision network cameras. The flaw allows unauthenticated remote attackers to retrieve partial sensitive data from affected devices by sending malformed input to exposed network services. Because exploitation requires no authentication and no user interaction, any camera reachable over the network is at risk of information disclosure.

Hikvision published a security advisory acknowledging the vulnerability and providing firmware updates for affected models. Operators of Hikvision camera deployments should treat the issue as a priority given the network-accessible nature of these devices in surveillance and physical security environments.

Critical Impact
Unauthenticated network attackers can extract partial sensitive data from affected Hikvision cameras, compromising confidentiality of surveillance infrastructure.

Affected Products

Hikvision network cameras running affected firmware versions
Specific models and firmware versions listed in the Hikvision security advisory
Refer to the Hikvision Security Advisory for the authoritative product list

Discovery Timeline

2026-07-22 - CVE-2026-57600 published to the National Vulnerability Database
2026-07-22 - Last updated in NVD database

Technical Details for CVE-2026-57600

Vulnerability Analysis

The vulnerability originates in firmware routines that accept parameters from network-facing services without adequate validation. Attackers craft requests containing unexpected values or structures, causing the camera firmware to expose fragments of sensitive data in its responses. The disclosed content varies by request and firmware build, but reflects data the camera should keep internal.

The impact is limited to confidentiality — integrity and availability of the device are not affected by this issue. However, disclosed data can include configuration details or operational information that assists further attacks against the camera or the broader network. Because the attack requires only network reachability, exposed devices on the internet or on flat internal networks face immediate risk.

Root Cause

The root cause is improper input validation [CWE-20] within firmware request handlers. The affected code paths do not enforce type, range, or structural constraints on caller-supplied parameters before using them in operations that produce response content.

Attack Vector

Exploitation occurs over the network against services exposed by the camera firmware. An attacker sends crafted requests to a reachable Hikvision camera and parses the responses to extract partial sensitive data. No credentials, tokens, or user interaction are required. Detailed exploitation specifics are not published in the Hikvision advisory. Refer to the Hikvision Security Advisory for vendor-provided technical context.

Detection Methods for CVE-2026-57600

Indicators of Compromise

Unusual inbound requests to camera management or media services from unfamiliar source addresses
Repeated malformed or oversized parameter values in HTTP or ONVIF requests to camera endpoints
Outbound responses from cameras containing configuration fragments to external destinations

Detection Strategies

Inventory all Hikvision cameras and compare running firmware versions against the vendor advisory
Inspect web and application logs on cameras and upstream proxies for anomalous parameter patterns targeting device APIs
Deploy network intrusion detection signatures for known scanning behavior against Hikvision management interfaces

Monitoring Recommendations

Alert on any direct internet exposure of Hikvision camera management ports discovered through external attack surface scans
Baseline normal request volumes to camera endpoints and flag deviations that suggest enumeration or probing
Correlate camera access logs with authentication events to identify unauthenticated probing sequences

How to Mitigate CVE-2026-57600

Immediate Actions Required

Apply the firmware updates published in the Hikvision Security Advisory to all affected cameras
Remove Hikvision cameras from direct internet exposure and place them behind a segmented management network
Rotate credentials and review configuration on any camera suspected of being probed prior to patching

Patch Information

Hikvision has released firmware updates addressing CVE-2026-57600. Consult the vendor advisory for the specific firmware version applicable to each affected camera model. Cameras that cannot receive the update should be isolated or replaced.

Workarounds

Restrict access to camera services with firewall access control lists that permit only authorized management hosts
Place cameras on a dedicated VLAN with no inbound access from untrusted networks or the internet
Disable unused network services on affected cameras to reduce the exposed attack surface

bash

# Example: restrict inbound access to camera management interface with iptables
# Replace CAMERA_IP and MGMT_SUBNET with values from your environment
iptables -A FORWARD -s MGMT_SUBNET -d CAMERA_IP -p tcp --dport 80 -j ACCEPT
iptables -A FORWARD -s MGMT_SUBNET -d CAMERA_IP -p tcp --dport 443 -j ACCEPT
iptables -A FORWARD -d CAMERA_IP -j DROP