What is the CVSS score of CVE-2019-9677?

CVE-2019-9677 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.1%.

Is there a patch available for CVE-2019-9677?

Yes, a patch is available for CVE-2019-9677. Update the affected software to the latest version immediately.

Ipc Hdw1X2X Firmware CVE-2019-9677

CRITICAL

Classic Buffer Overflow (CWE-120)

2019-09-18 cybersecurity@dahuatech.com

Buffer Overflow Dahua Ipc Hdw1X2X Firmware Ipc Hfw1X2X Firmware Ipc Hdw2X2X Firmware Ipc Hfw2X2X Firmware Ipc Hdw4X2X Firmware Ipc Hfw4X2X Firmware Ipc Hdbw4X2X Firmware Ipc Hdw5X2X Firmware Ipc Hfw5X2X Firmware

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Sep 18, 2019 - 19:15 nvd

CRITICAL 9.8

DescriptionNVD

The specific fields of CGI interface of some Dahua products are not strictly verified, an attacker can cause a buffer overflow by constructing malicious packets. Affected products include: IPC-HDW1X2X,IPC-HFW1X2X,IPC-HDW2X2X,IPC-HFW2X2X,IPC-HDW4X2X,IPC-HFW4X2X,IPC-HDBW4X2X,IPC-HDW5X2X,IPC-HFW5X2X for versions which Build time is before August 18, 2019.

AnalysisAI

The specific fields of CGI interface of some Dahua products are not strictly verified, an attacker can cause a buffer overflow by constructing malicious packets. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Buffer Copy without Size Check vulnerability could allow attackers to overflow a buffer to corrupt adjacent memory.

Technical ContextAI

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. The specific fields of CGI interface of some Dahua products are not strictly verified, an attacker can cause a buffer overflow by constructing malicious packets. Affected products include: IPC-HDW1X2X,IPC-HFW1X2X,IPC-HDW2X2X,IPC-HFW2X2X,IPC-HDW4X2X,IPC-HFW4X2X,IPC-HDBW4X2X,IPC-HDW5X2X,IPC-HFW5X2X for versions which Build time is before August 18, 2019. Affected products include: Dahuasecurity Ipc-Hdw1X2X Firmware, Dahuasecurity Ipc-Hfw1X2X Firmware, Dahuasecurity Ipc-Hdw2X2X Firmware, Dahuasecurity Ipc-Hfw2X2X Firmware, Dahuasecurity Ipc-Hdw4X2X Firmware.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.