CVE-2026-16327: d-link dns-320 Improper Access Control
Vulnerability summary
CVE-2026-16327 is a high (CVSS 7.5) Improper Access Control vulnerability in d-link dns-320. EPSS estimates a 1.57% chance of exploitation in the next 30 days, higher than 75.2% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 20-07-2026PublishedVulnerability first disclosed.
- 21-07-2026Last modifiedVulnerability information updated.
Description
A vulnerability was determined in D-Link DNS-320 1.0.2. This issue affects some unknown processing of the file /web/web_file/upload.php. Executing a manipulation of the argument File can lead to unrestricted upload. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized.
CVSS metrics
7 scores · 2 sources · 4 versions- NVDNIST5.5MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XDiffers
- NVDNIST7.3HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
- NVDNIST7.5HighAV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS trend
Probability
1.57%
Chance of exploitation in the next 30 days
Percentile
75%
Versus all other CVEs
30-day change
0.00 pp
From 1.57% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (ucn9h68n9289.feishu.cn)
Maturity: unknown
Weaknesses
CWE · root cause- CWE-284Improper Access ControlThe product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
- CWE-434Unrestricted Upload of File with Dangerous TypeThe product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
Affected systems
D-link1 product
- dns-3201.0.2
1 vendor · 1 product
References
6 links- vuldb.com/cve/CVE-2026-16327Third Party Advisory
- vuldb.com/submit/858455Third Party Advisory
- www.dlink.comProduct