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CVE-2019-3922

32
FAUCET Score

CVE-2019-3922 describes a critical stack buffer overflow vulnerability in the Alcatel Lucent I-240W-Q GPON ONT, specifically firmware version 3FE54567BOZJ19. An unauthenticated, remote attacker can exploit this by sending a crafted HTTP POST request to /GponForm/fsetup_Form, potentially leading to arbitrary code execution. With a CVSS score of 9.8 (Critical), this vulnerability requires no user interaction or authentication and has a high impact on confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, and community discussion is minimal, its high EPSS and FAUCET Risk Score indicate a significant potential threat.

Impacted Technologies

VendorProductVersion(s)CPE
3fe54567bozj19CPE matchmatch criteria
cpe:2.3:o:nokia:i-240w-q_gpon_ont_firmware:3fe54567bozj19:*:*:*:*:*:*:*

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
5.24%
Probability of exploitation in next 30 days
EPSS Percentile
91.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0524 is in the 86th percentile among its peer group of 36,862 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

Vendor Patches (3)

dogukanurkervendor investigatingvia llm_extracted
posthogvendor investigatingvia llm_extracted
qlikvendor investigatingvia llm_extracted

Vendor Advisories (3)

dogukanurkerllm-dogukanurker-b90f91dbdeda08ffCRITICAL

Nokia GPON ONT Multiple Vulnerabilities

Feb 27, 2019
qlikllm-qlik-b5798ebfcd828cacCRITICAL

Nokia GPON ONT Multiple Vulnerabilities

Feb 27, 2019
posthogllm-posthog-fa3cf2df1b08673cCRITICAL

Nokia GPON ONT Multiple Vulnerabilities

Feb 27, 2019

References

tenable.com / security/research/tra-2019-09
ExploitThird Party Advisory