CVE-2025-53757Network attack vector

Information disclosure via unprotected session cookies

Published Jul 16, 2025 · Updated Jul 16, 2025

Insecure session cookies in Digisol DG-GR6821AC firmware V3.2.XX allow remote attackers to obtain sensitive device information over HTTP. The router web interface sets authentication session cookies without Secure or HttpOnly, permitting plaintext HTTP transmission and client-side script access. Exploitation requires an exposed web session and capture of its cookie; the documented consequence is sensitive-information disclosure from the device.

CVSS severity8.7
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insecure session cookies in Digisol DG-GR6821AC firmware V3.2.XX allow remote attackers to obtain sensitive device information over HTTP. The router web interface sets authentication session cookies without Secure or HttpOnly, permitting plaintext HTTP transmission and client-side script access. Exploitation requires an exposed web session and capture of its cookie; the documented consequence is sensitive-information disclosure from the device.

The record

CVE
CVE-2025-53757
Published
Jul 16, 2025
Updated
Jul 16, 2025
Vendor
Digisol
Product
DG-GR6821AC
Classifications
CWE-614, CWE-1004, T1539
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=V3.2.XX

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Digisol · DG-GR6821ACversion=V3.2.XX

Published CVSS scores

8.7CERT-InCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-614Sensitive Cookie in HTTPS Session Without 'Secure' Attribute
CWE-1004Sensitive Cookie Without 'HttpOnly' Flag
T1539Steal Web Session Cookie

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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