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CVE-2019-9677

29
FAUCET Score

CVE-2019-9677 is a critical buffer overflow vulnerability affecting specific Dahua IPC and HFW series products with firmware built before August 18, 2019. An unauthenticated attacker can exploit this flaw remotely by sending specially crafted packets to the device's CGI interface, leading to a complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation has been confirmed, the vulnerability has garnered significant community discussion, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
< 2019-08-18CPE matchmatch criteria
cpe:2.3:o:dahuasecurity:ipc-hdw1x2x_firmware:*:*:*:*:*:*:*:*
< 2019-08-18CPE matchmatch criteria
cpe:2.3:o:dahuasecurity:ipc-hfw1x2x_firmware:*:*:*:*:*:*:*:*
< 2019-08-18CPE matchmatch criteria
cpe:2.3:o:dahuasecurity:ipc-hdw2x2x_firmware:*:*:*:*:*:*:*:*
< 2019-08-18CPE matchmatch criteria
cpe:2.3:o:dahuasecurity:ipc-hfw2x2x_firmware:*:*:*:*:*:*:*:*
< 2019-08-18CPE matchmatch criteria
cpe:2.3:o:dahuasecurity:ipc-hdw4x2x_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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 Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.14%
Probability of exploitation in next 30 days
EPSS Percentile
63.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0114 is in the 49th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

dahuasecurity.com / support/cybersecurity/details/637
PatchVendor Advisory