Critical severity · published Jun 4, 2025
CVE-2025-5621
D-Link DIR-816 qosClassifier os command injection
9.8
CVSS
7.5%
EPSS
No
On KEV
Description
A vulnerability has been found in D-Link DIR-816 1.10CNB05 and classified as critical. Affected by this vulnerability is the function qosClassifier of the file /goform/qosClassifier. The manipulation of the argument dip_address/sip_address leads to os command injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)7.5% · higher than 94% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DI
DIR-816 · D-Link
1.10CNB05 · source: vendor
DF
Dir-816 Firmware · Dlink
1.10cnb05 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-5621
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-5621
Exploit
https://github.com/wudipjq/my_vuln/blob/main/D-Link5/vuln_49/49.md
Permissions Required
https://vuldb.com/?ctiid.311107
Third Party Advisory
https://vuldb.com/?id.311107
Third Party Advisory
https://vuldb.com/?submit.589221
Product
https://www.dlink.com/
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