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CVE-2019-9974

23
FAUCET Score

CVE-2019-9974 describes an authentication bypass vulnerability in the diag_tool.cgi script of DASAN H660RM GPON routers running firmware 1.03-0022. This critical vulnerability (CVSS 9.1) allows unauthenticated remote attackers to execute arbitrary ping commands via a GET request, enabling network enumeration or denial-of-service attacks against the router. While no public exploits or active exploitation have been observed, and community discussion is minimal, the lack of an authorization check makes it a significant risk.

Impacted Technologies

VendorProductVersion(s)CPE
1.03-0022CPE matchmatch criteria
cpe:2.3:o:dasannetworks:h660rm_firmware:1.03-0022:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.1CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.92%
Probability of exploitation in next 30 days
EPSS Percentile
85.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0292 is in the 77th percentile among its peer group of 36,833 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

packetstormsecurity.com / files/152232/DASAN-H660RM-Information-Disclosure-Hardcoded-Key.html
Third Party AdvisoryVDB Entry
blog.burghardt.pl / 2019/03/diag_tool-cgi-on-dasan-h660rm-devices-with-firmware-1-03-0022-allows-spawning-ping-processes-without-any-authorization-leading-to-information-disclosure-and-dos-attacks
ExploitThird Party Advisory
seclists.org / bugtraq/2019/Mar/41
Mailing ListThird Party Advisory