How severe is CVE-2026-8271?

CVE-2026-8271 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-2026-8271 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-8271?

CVE-2026-8271 affects Dlink Dns-320 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-8271?

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

Does CVE-2026-8271 have an EU (EUVD) identifier?

Yes. CVE-2026-8271 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29029.

When was CVE-2026-8271 published?

CVE-2026-8271 was published on 2026-05-11 and last updated on 2026-06-17.

CVE-2026-8271

CVE-2026-8271 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: 2.0
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-29029
Weakness: CWE-78
Affected product: Dlink Dns-320 Firmware
Published: 2026-05-11
Last modified: 2026-06-17

Description

A vulnerability was identified in D-Link DNS-320 2.06B01. The impacted element is the function cgi_speed/cgi_dhcpd_lease/cgi_ddns/cgi_set_ip/cgi_upnp_del/cgi_dhcpd/cgi_upnp_add/cgi_upnp_edit of the file /cgi-bin/network_mgr.cgi. The manipulation leads to os command injection. The attack is possible to be carried out remotely. The exploit is publicly available and might be used.

Frequently asked questions

What is CVE-2026-8271?: A vulnerability was identified in D-Link DNS-320 2.06B01. The impacted element is the function cgi_speed/cgi_dhcpd_lease/cgi_ddns/cgi_set_ip/cgi_upnp_del/cgi_dhcpd/cgi_upnp_add/cgi_upnp_edit of the file /cgi-bin/network_mgr.cgi. The manipulation leads to os command injection. The attack is possible to be carried out remotely. The exploit is publicly available and might be used.
How severe is CVE-2026-8271?: CVE-2026-8271 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-2026-8271 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-8271?: CVE-2026-8271 affects Dlink Dns-320 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-8271?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-8271 have an EU (EUVD) identifier?: Yes. CVE-2026-8271 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29029.
When was CVE-2026-8271 published?: CVE-2026-8271 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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