Skip to content
Fencer Intel
critical 9.8

CVE-2018-10562 kev+ ransomware in the critical feed json

An issue was discovered on Dasan GPON home routers.

published 8y ago modified 4mo ago also EUVD-2018-2634

cvss
9.8
version 3.1, CNA
cisa kev
Exploited
added 2022-03-31, used in ransomware
epss
99.9%
EPSS 99.9% chance of exploitation in 30 days, percentile 99.9%
public exploits
1
Exploit-DB, plus a Nuclei check

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.

Patch / fix

cisa required action The impacted product is end-of-life and should be disconnected if still in use.

Is CVE-2018-10562 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Timeline

  1. First public exploit (EDB-44576)
  2. Published
  3. Added to CISA KEV
  4. CISA patch deadline
  5. CISA SSVC: exploitation active

Known exploited

Added
4y ago
Patch by
2022-04-21 (4y ago)
Ransomware
Known to be used in ransomware campaigns
Required action
The impacted product is end-of-life and should be disconnected if still in use.
Vendor, product
Dasan, Gigabit Passive Optical Network (GPON) Routers
CISA name
Dasan GPON Routers Command Injection Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
yes
Technical impact
total
Assessed
last yr.

Exploit prediction

99.95% chance of exploitation in the next 30 days, higher than 99.9% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-44576 GPON Routers - Authentication Bypass / Command Injection remote, 2018-05-03
  • Nuclei template Dasan GPON Devices - Remote Code Execution nuclei detection template
  • vpnmentor.com https://www.vpnmentor.com/blog/critical-vulnerability-gpon-router/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.