CVE-2024-0769KEV · OVERDUECWE-22

D-Link DIR-859 HTTP POST Request hedwig.cgi path traversal

Medium · published January 21, 2024

Patch now

The score understates this — it's already being exploited

CVSS calls it medium at 5.3. It is confirmed in active exploitation. It sits in the 99.7th percentile for exploit probability.

464
days past CISA
deadline
CVSS v3.1
5.3
EPSS
83%
Percentile
99.7
In the wild
Confirmed
What it is

⚠️ Watch out for an unsupported blast from the past! This D-Link DIR-859 vulnerability lets attackers traverse sensitive directories with a sneaky path, thanks to a trick in the /hedwig.cgi file. 🔍 Think of this vulnerability like a delivery driver who has the wrong address and manages to sneak into your backyard instead of dropping the package at the front door. They can access all sorts of hidden areas that were meant to be off-limits! An attacker could remotely exploit this vulnerability to access sensitive files on your device, potentially exposing personal data or configuration settings. The risk is real, especially since this product is no longer supported and has been confirmed as end-of-life, meaning no patches or updates will save the day!

Put simply

Think of this vulnerability like a delivery driver who has the wrong address and manages to sneak into your backyard instead of dropping the package at the front door. They can access all sorts of hidden areas that were meant to be off-limits! This path traversal vulnerability occurs due to improper handling of HTTP POST requests in the file /hedwig.cgi. By manipulating the ‘service’ argument, attackers can access arbitrary files on the server, leading to unauthorized information disclosure.

What to do

An attacker could remotely exploit this vulnerability to access sensitive files on your device, potentially exposing personal data or configuration settings. The risk is real, especially since this product is no longer supported and has been confirmed as end-of-life, meaning no patches or updates will save the day! Given that this device is out of support, the best course of action is to immediately retire the D-Link DIR-859 and replace it with a current model that receives regular updates and patches. If you must use it in the meantime, ensure it's not exposed to the internet and monitor your network closely. You’ve got this! Stay vigilant and secure your network like the hero you are! 🦸

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.82714 · 99.7th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2024-01-21T08:00Z
KEV added
2025-06-25 · due 2025-07-16
EPSS history
Timeline
  • 25 JUN 00:00Z
    Added to CISA KEV — remediate by Jul 16
    kev
  • 21 JAN 08:00Z
    D-Link DIR-859 HTTP POST Request hedwig.cgi path traversal
    cvelistv5