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CVE-2017-18046 (GCVE-0-2017-18046)

Vulnerability from cvelistv5 – Published: 2018-01-21 22:00 – Updated: 2024-08-05 21:06
VLAI Shadowserver Previdian
Summary
Buffer overflow on Dasan GPON ONT WiFi Router H640X 12.02-01121 2.77p1-1124 and 3.03p2-1146 devices allows remote attackers to execute arbitrary code via a long POST request to the login_action function in /cgi-bin/login_action.cgi (aka cgipage.cgi).
Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • n/a
Assigner
References
Date Public
2018-01-21 00:00
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 977ddb0a-429f-4001-89bc-ea4b88012d81

Vulnerability ID: CVE-2017-18046

Status: Confirmed

Status Updated: 2023-10-18 16:26 UTC

Exploited: Yes

Characteristics
Severity: 98.0
Timestamps
First Seen: 2023-10-18
Asserted: 2023-10-18
Last Seen: 2023-10-18
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: Dasan / Dasan GPON ONT WiFi Router H640X | Class: router | IoT: yes | In CISA KEV: no | Honeypot connections on 2022-08-27: 5
Evidence

Type: Honeypot

Signal: In The Wild Attempts

Confidence: 70%

Source: shadowserver

Details
1D 1
Iot yes
Feed Shadowserver Foundation honeypot/exploited-vulnerabilities
Type http-scan
Class router
7D Avg 0
Vendor Dasan
30D Avg 0
90D Avg 0
Product Dasan GPON ONT WiFi Router H640X
Cisa Kev no
Connections 5
Observation Date 2022-08-27
Vulnerability Class None
Vulnerability Score None
Vulnerability Severity None
References
Created: 2026-06-30 09:40 UTC | Updated: 2026-06-30 15:44 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: e5974e98-46c3-4234-848a-79a7cffeca95

Vulnerability ID: CVE-2017-18046

Status: Confirmed

Status Updated: 2018-01-21 22:00 UTC

Exploited: Yes

Timestamps
First Seen: 2018-01-21
Asserted: 2018-01-21
Scope
Notes: KEVIntel entry: Buffer overflow on Dasan GPON ONT WiFi Router H640X 12.02-01121 2.77p1-1124 and 3.03p2-1146 devices allows remote attackers to execute arbitrary... | Affected: n/a / n/a | Used in malware: unknown | Not yet in CISA KEV: True
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title Buffer overflow on Dasan GPON ONT WiFi Router H640X 12.02-01121 2.77p1-1124 and 3.03p2-1146 devices allows remote attackers to execute arbitrary...
Vendor n/a
Product n/a
Added Date 2018-01-21T22:00:00.000Z
Cvss Score None
Epss Score None
Cvss Severity None
Epss Percentile None
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True
References
Created: 2026-06-23 14:06 UTC | Updated: 2026-07-10 06:14 UTC
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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