CVE-2025-2546Public exploit

Unauthenticated firewall modification via unchecked form request

Published Mar 20, 2025 · Updated Mar 20, 2025

Improper access control in D-Link DIR-618 and DIR-605L 2.02 and 3.02 allows remote attackers to alter firewall rules over a local network. The /goform/formAdvFirewall handler processes crafted state-changing parameters without enforcing administrative authorization. Network adjacency is required; exploitation changes firewall configuration without authentication, while published vectors report no confidentiality or availability impact.

CVSS severity5.3
Medium
EPSS probability10.76%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper access control in D-Link DIR-618 and DIR-605L 2.02 and 3.02 allows remote attackers to alter firewall rules over a local network. The /goform/formAdvFirewall handler processes crafted state-changing parameters without enforcing administrative authorization. Network adjacency is required; exploitation changes firewall configuration without authentication, while published vectors report no confidentiality or availability impact.

The record

CVE
CVE-2025-2546
Published
Mar 20, 2025
Updated
Mar 20, 2025
Vendor
D-Link
Product
DIR-618
Classifications
CWE-266, CWE-284, T1562.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 20, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=2.02
  2. Affected versionversion=3.02

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

D-Link · DIR-618version=2.02; version=3.02
D-Link · DIR-605Lversion=2.02; version=3.02

Published CVSS scores

4.3VulDBCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
4.3VulDBCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.3VulDBCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
3.3VulDBAV:A/AC:L/Au:N/C:N/I:P/A: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-266Incorrect Privilege Assignment
CWE-284Improper Access Control
T1562.004Disable or Modify System Firewall

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo