How severe is CVE-2026-8273?

CVE-2026-8273 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-8273 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-8273?

CVE-2026-8273 affects Dlink Dns-320 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-8273?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-8273 have an EU (EUVD) identifier?

Yes. CVE-2026-8273 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29031.

When was CVE-2026-8273 published?

CVE-2026-8273 was published on 2026-05-11 and last updated on 2026-06-17.

CVE-2026-8273

CVE-2026-8273 is a medium-severity vulnerability in Dlink Dns-320 Firmware with a CVSS 3.x base score of 4.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
CVSS v2: 5.8
CVSS v4: 5.1
EPSS exploit prediction: 5% (90th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-29031
Weakness: CWE-78
Affected product: Dlink Dns-320 Firmware
Published: 2026-05-11
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-8273?: 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.
How severe is CVE-2026-8273?: CVE-2026-8273 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-8273 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-8273?: CVE-2026-8273 affects Dlink Dns-320 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-8273?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-8273 have an EU (EUVD) identifier?: Yes. CVE-2026-8273 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29031.
When was CVE-2026-8273 published?: CVE-2026-8273 was published on 2026-05-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dlink:dns-320_firmware:2.06b01:*:*:*:*:*:*:*

More vulnerabilities in Dlink Dns-320 Firmware

CVE-2024-3272 — Critical (CVSS 9.8): ** UNSUPPORTED WHEN ASSIGNED ** A vulnerability, which was classified as very critical, has been found in D-Link…
CVE-2020-25506 — Critical (CVSS 9.8): D-Link DNS-320 FW v2.06B01 Revision Ax is affected by command injection in the system_mgr.cgi component, which can lead…
CVE-2019-16057 — Critical (CVSS 9.8): The login_mgr.cgi script in D-Link DNS-320 through 2.05.B10 is vulnerable to remote command injection.
CVE-2026-5214 — High (CVSS 8.8): A vulnerability was found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L,…
CVE-2026-5213 — High (CVSS 8.8): A vulnerability was determined in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L,…
CVE-2026-5212 — High (CVSS 8.8): A vulnerability has been found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L,…

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