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CVE-2018-10562 (GCVE-0-2018-10562)

Vulnerability from cvelistv5 – Published: 2018-05-04 03:00 – Updated: 2025-10-21 23:45
VLAI CISA Shadowserver Previdian
Summary
An issue was discovered on Dasan GPON home routers. Command Injection can occur via the dest_host parameter in a diag_action=ping request to a GponForm/diag_Form URI. Because the router saves ping results in /tmp and transmits them to the user when the user revisits /diag.html, it's quite simple to execute commands and retrieve their output.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-04 14:23 UTC
CWE
  • n/a
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
Date Public
2018-05-03 00:00
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 0b840c30-10bc-4195-8d93-61ec8504896e

Vulnerability ID: CVE-2018-10562

Status: Confirmed

Status Updated: 2022-03-31 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2022-03-31
Asserted: 2022-03-31
Scope
Notes: KEV entry: Dasan GPON Routers Command Injection Vulnerability | Affected: Dasan / Gigabit Passive Optical Network (GPON) Routers | Description: Dasan GPON Routers contain an authentication bypass vulnerability. When combined with CVE-2018-10561, exploitation can allow an attacker to perform remote code execution. | Required action: The impacted product is end-of-life and should be disconnected if still in use. | Due date: 2022-04-21 | Known ransomware campaign use (KEV): Known | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2018-10562
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-78
Feed CISA Known Exploited Vulnerabilities Catalog
Product Gigabit Passive Optical Network (GPON) Routers
Due Date 2022-04-21
Date Added 2022-03-31
Vendorproject Dasan
Vulnerabilityname Dasan GPON Routers Command Injection Vulnerability
Knownransomwarecampaignuse Known
References
Created: 2026-02-02 12:27 UTC | Updated: 2026-02-06 07:17 UTC
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 9d527e7e-af6c-4b38-96b1-35e0e2107215

Vulnerability ID: CVE-2018-10562

Status: Confirmed

Status Updated: 2026-07-20 00:00 UTC

Exploited: Yes

Characteristics
Severity: 98.0
Timestamps
First Seen: 2023-10-13
Asserted: 2023-10-13
Last Seen: 2026-07-20
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: Dasan / Dasan GPON Home Router | Class: router | Severity: Critical (CVSS 9.8) | IoT: yes | In CISA KEV: yes | Honeypot connections on 2026-07-20: 253
Evidence

Type: Honeypot

Signal: In The Wild Attempts

Confidence: 70%

Source: shadowserver

Details
1D 236
Iot yes
Feed Shadowserver Foundation honeypot/exploited-vulnerabilities
Type http-scan
Class router
7D Avg 258
Vendor Dasan
30D Avg 272
90D Avg 425
Product Dasan GPON Home Router
Cisa Kev yes
Connections 253
Observation Date 2026-07-20
Vulnerability Class CVSS
Vulnerability Score 9.8
Vulnerability Severity Critical
References
Created: 2026-06-30 09:22 UTC | Updated: 2026-07-22 01:00 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 7c7497e4-fc9f-4be7-bc2d-2205309836a7

Vulnerability ID: CVE-2018-10562

Status: Confirmed

Status Updated: 2022-03-31 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2022-03-31
Asserted: 2022-03-31
Scope
Notes: KEVIntel entry: An issue was discovered on Dasan GPON home routers. Command Injection can occur via the dest_host parameter in a diag_action=ping request to a... | Affected: Dasan / GPON home routers | CVSS: 9.8 (CRITICAL) | EPSS: 0.9995 | Used in malware: yes | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Confirmed Compromise

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title An issue was discovered on Dasan GPON home routers. Command Injection can occur via the dest_host parameter in a diag_action=ping request to a...
Vendor Dasan
Product GPON home routers
Added Date 2022-03-31T00:00:00.000Z
Cvss Score 9.8
Epss Score 0.9995
Cvss Severity CRITICAL
Epss Percentile 0.99973
Used In Malware yes
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-06-23 14:05 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

Author Source Type Date Other

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.