CVE-2022-40799KEV · OVERDUE

D-Link DNR-322L Download of Code Without Integrity Check Vulnerability

High · published November 29, 2022

Patch now

Confirmed exploited, and the score agrees

CVSS calls it high at 8.8. It is confirmed in active exploitation. It sits in the 98.4th percentile for exploit probability.

423
days past CISA
deadline
CVSS v3.1
8.8
EPSS
34%
Percentile
98.4
In the wild
Confirmed
What it is

🚨 An authenticated attacker can execute OS-level commands on the D-Link DNR-322L with just a backup configuration! This is absolutely devastating! 🔥 Think of it like an unsuspecting tenant who accidentally receives the master key to the entire apartment complex — they can waltz into any unit without anyone knowing. In this case, the attacker has the power to control the device entirely, which is alarming! The ramifications are severe: an attacker could manipulate device settings, tamper with data, or even take the entire system offline. If your D-Link DNR-322L is vulnerable, they’ve got the keys to your digital kingdom! ⛓️ Not cool, right?

Put simply

Think of it like an unsuspecting tenant who accidentally receives the master key to the entire apartment complex — they can waltz into any unit without anyone knowing. In this case, the attacker has the power to control the device entirely, which is alarming! This vulnerability arises from a data integrity failure in the 'Backup Config' feature, allowing authenticated attackers to execute arbitrary OS-level commands. Essentially, if they gain access to the device, they can run any command they wish without restrictions.

What to do

The ramifications are severe: an attacker could manipulate device settings, tamper with data, or even take the entire system offline. If your D-Link DNR-322L is vulnerable, they’ve got the keys to your digital kingdom! ⛓️ Not cool, right? To safeguard your system, immediately update your D-Link DNR-322L to version 2.60B16 or later. Additionally, review user access controls and ensure that only trusted individuals can authenticate to the device. Don't wait — take action now! You've got this! Follow these steps, and you'll be well on your way to securing your device. 🛡️

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.33650 · 98.4th percentile
Published
2022-11-29T00:00Z
KEV added
2025-08-05 · due 2025-08-26
EPSS history
Timeline
  • 05 AUG 00:00Z
    Added to CISA KEV — remediate by Aug 26
    kev
  • 29 NOV 00:00Z
    Data Integrity Failure in 'Backup Config' in D-Link DNR-322L <= 2.60B15 allows an authenticated attacker to execute OS level commands on the device
    cvelistv5