CVE-2020-9502

CRITICAL
9.8
CVSS Score
Published: May 13, 2020 at 03:21 PM UTC
Updated: June 17, 2026 at 03:28 AM UTC
44 products affected across 1 vendorSD6AL FirmwareSD50 FirmwareSD52C Firmware

Using IPC-HX2XXX Series,IPC-HXXX5X4X Series,IPC-HX5842H,IPC-HX7842H,NVR 5x Series,NVR 4x Series,SD6AL Series,SD5A Series,SD1A Series,PTZ1A Series,SD50/52C Series,IPC-HFW1431S by N/A?

Get instant alerts when new vulnerabilities affect IPC-HX2XXX Series,IPC-HXXX5X4X Series,IPC-HX5842H,IPC-HX7842H,NVR 5x Series,NVR 4x Series,SD6AL Series,SD5A Series,SD1A Series,PTZ1A Series,SD50/52C Series,IPC-HFW1431S - before attackers find them.

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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%

Description

Some Dahua products with Build time before December 2019 have Session ID predictable vulnerabilities. During normal user access, an attacker can use the predicted Session ID to construct a data packet to attack the device.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2019-12
Affected range stops below 2019-12, so it looks safe — our inference, not a vendor statement
dahuasecurity-ipc-hdbw1320e-w (same device)
v < 2019-12
Affected range stops below 2019-12, so it looks safe — our inference, not a vendor statement
dahuasecurity-ipc-hx2xxx (same device)
v < 2019-12
Affected range stops below 2019-12, so it looks safe — our inference, not a vendor statement
dahuasecurity-ipc-hx5842h (same device)
v < 2019-12
Affected range stops below 2019-12, so it looks safe — our inference, not a vendor statement
dahuasecurity-ipc-hx7842h (same device)
v < 2019-12
Affected range stops below 2019-12, so it looks safe — our inference, not a vendor statement
dahuasecurity-ipc-hxxx5x4x (same device)
v < 2019-12
Affected range stops below 2019-12, so it looks safe — our inference, not a vendor statement
dahuasecurity-n42b1p (same device)
v < 2019-12
Affected range stops below 2019-12, so it looks safe — our inference, not a vendor statement
dahuasecurity-n42b2p (same device)
v < 2019-12
Affected range stops below 2019-12, so it looks safe — our inference, not a vendor statement
dahuasecurity-n42b3p (same device)
v < 2019-12
Affected range stops below 2019-12, so it looks safe — our inference, not a vendor statement
dahuasecurity-n52a4p (same device)
v < 2019-12
Affected range stops below 2019-12, so it looks safe — our inference, not a vendor statement
dahuasecurity-n52b2p (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-330

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