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Fencer Vulns
high 8.7

CVE-2025-53757 json

Insecure Cookie Flags Vulnerability in Digisol DG-GR6821AC Router

published 2025-07-16 15 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-21642

cvss
8.7
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 25%
public exploits
0
none known

Summary

This vulnerability exists in Digisol DG-GR6821AC Router due to misconfiguration of both Secure and HttpOnly flags on session cookies associated with the router web interface. A remote attacker could exploit this vulnerability by capturing the session cookies transmitted over an unsecure HTTP connection.

Successful exploitation of this vulnerability could allow the attacker to obtain sensitive information from the targeted device.

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
15 mo ago

Exploit prediction

0.32% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • Digisol XPON ONU Wi-Fi Router (DG-GR6821AC)

Classification

Weakness
  • CWE-614 Sensitive Cookie in HTTPS Session Without 'Secure' Attribute
  • CWE-1004 Sensitive Cookie Without 'HttpOnly' Flag

References

Sources

Fencer Vulns 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.