High severity · published Jul 21, 2026
CVE-2026-16331
D-Link DNS-320 save_ajax.php unrestricted upload
7.3
CVSS
1.6%
EPSS
No
On KEV
Description
A security vulnerability has been detected in D-Link DNS-320 1.0.2. This affects an unknown function of the file /web/function/save_ajax.php. Such manipulation of the argument Malicious Handler leads to unrestricted upload. The attack can be executed remotely. The exploit has been disclosed publicly and may be used.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 75% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DN
DNS-320 · D-Link
1.0.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-16331
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-16331
ucn9h68n9289.feishu.cn
https://ucn9h68n9289.feishu.cn/docx/UZ6id3F1Joqlpxxn3NFcL8r7nHb?from=from_copylink
vuldb.com
https://vuldb.com/cve/CVE-2026-16331
vuldb.com
https://vuldb.com/submit/858464
vuldb.com
https://vuldb.com/vuln/380697
vuldb.com
https://vuldb.com/vuln/380697/cti
www.dlink.com
https://www.dlink.com/
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