HOMEVULNERABILITIESCVE-2026-8273
HIGH

CVE-2026-8273

CWE-77Published: May 11, 2026· Updated: May 11, 2026

7.2
CVSS v3.1
EPSS:0.09%probability of exploitation in 30 daysPercentile:24.8th

Official Description

A weakness has been identified in D-Link DNS-320 2.06B01. This impacts the function cgi_set_host/cgi_set_ntp/cgi_fan_control/cgi_merge_user of the file /cgi-bin/system_mgr.cgi. This manipulation causes os command injection. It is possible to initiate the attack remotely.

NVD Source

Technical Analysis

CVE-2026-8273 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.2.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.High
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

dlink2 products
dns-320 firmwaredns-320
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/D-Link%20DNS-320%20%20system_mgraccount_mgrdsk_mgrapp_mgr%20Multiple%20CGI%20OS%20Command%20Injection.md
ADVISORYhttps://vuldb.com/submit/810082
ADVISORYhttps://vuldb.com/vuln/362570
ADVISORYhttps://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/D-Link%20DNS-320%20%20system_mgraccount_mgrdsk_mgrapp_mgr%20Multiple%20CGI%20OS%20Command%20Injection.md
ADVISORYhttps://vuldb.com/submit/810082

All References (7)

→
https://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/D-Link%20DNS-320%20%20system_mgraccount_mgrdsk_mgrapp_mgr%20Multiple%20CGI%20OS%20Command%20Injection.mdExploit · Third Party Advisory
→
https://vuldb.com/submit/810082Third Party Advisory · VDB Entry
→
https://vuldb.com/vuln/362570Third Party Advisory · VDB Entry
→
https://vuldb.com/vuln/362570/ctiPermissions Required · VDB Entry
→
https://www.dlink.com/Product
→
https://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/D-Link%20DNS-320%20%20system_mgraccount_mgrdsk_mgrapp_mgr%20Multiple%20CGI%20OS%20Command%20Injection.mdExploit · Third Party Advisory
→
https://vuldb.com/submit/810082Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2026-8273
CVSS Score7.2 / 10
SeverityHIGH
WeaknessCWE-77
CISA KEVNo
EPSS (30d)0.09%
Affected1 vendor
PublishedMay 11, 2026

Related CVEs (CWE-77)

CVE-2025-15379
10.0
CVE-2026-20186
9.9
CVE-2026-45663
9.9
CVE-2026-26068
9.9
CVE-2026-52806
KEV9.9
CVE-2026-20147
9.9

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-8273 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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