PT-2025-23873 · D Link · D-Link Dir-816

Pjqwudi · Published 2025-06-03 · Updated 2025-06-05 · CVE-2025-5621

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions D-Link DIR-816 version 1.10CNB05

Description A critical issue has been discovered, affecting the qosClassifier function of the file /goform/qosClassifier. The manipulation of the arguments dip address and sip address leads to os command injection. This issue can be exploited remotely. The exploit has been publicly disclosed. This issue only affects products that are no longer supported by the maintainer.

Recommendations For D-Link DIR-816 version 1.10CNB05, as a temporary workaround, consider disabling the qosClassifier function until a patch is available. Restrict access to the /goform/qosClassifier file to minimize the risk of exploitation. Avoid using the arguments dip address and sip address in the affected function until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

OS Command Injection

Command Injection

Weakness Enumeration

CWE-78

CWE-77

Related Identifiers

BDU:2025-08878

CVE-2025-5621

Affected Products

D-Link Dir-816

References · 12

• 🔥 https://github.com/wudipjq/my_vuln/blob/main/D-Link5/vuln_49/49.md · Exploit
• https://bdu.fstec.ru/vul/2025-08878 · Security Note
• https://osv.dev/vulnerability/CVE-2025-5621 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-5621 · Security Note
• https://vuldb.com/?id.311107 · Note
• https://vuldb.com/?submit.589221 · Note
• https://twitter.com/CVEnew/status/1930411859049623585 · Twitter Post
• https://t.me/cvetracker/25460 · Telegram Post
• https://vuldb.com/?ctiid.311107 · Note
• https://dlink.com · Note
• https://twitter.com/VulmonFeeds/status/1930469503718072808 · Twitter Post
• https://t.me/cvenotify/124696 · Telegram Post