D-Link

CVE-2018-25120: D-Link DNS-343 ShareCenter <= 1.05 Command Injection via /goform/Mail_Test

Is it exploited?

Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of 29 Oct 2026.

VulnCheck KEV lists it since 29 Oct 2025. It cites 9 public reports, the first from 29 Oct 2025. VulnCheck's own honeypots also recorded exploitation attempts.

How likely is exploitation in the next 30 days?

9.8%

EPSS score, percentile 95.5 of all scored records. A probability estimated by FIRST, not a report of exploitation.

How severe?

9.3 Critical

CVSS v4.0 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

The CVE record links no vendor advisory, patch or mitigation.

Which versions are affected?

Affected

1.05 and earlier

Versions by product

Source: CISA KEV 2026.10.29, as of 29 Oct 2026; VulnCheck KEV, as of 30 Oct 2026; FIRST EPSS, as of 29 Oct 2026; CVE List, as of 30 Oct 2026. About the data.

Description

D-Link DNS-343 ShareCenter <= 1.05 Command Injection via /goform/Mail_Test

D-Link DNS-343 ShareCenter devices running firmware versions up to and including 1.05 contain a command injection vulnerability in the Mail Test functionality. The web maintenance script posts to the internal goForm endpoint '/goform/Mail_Test' and uses several form parameters directly in a call to a system email utility without proper input validation. An unauthenticated remote attacker can supply crafted form data that injects shell commands, resulting in execution as root on the device. NOTE: The DNS-343 product line has been declared end-of-life.

Source: CVE List, as of 30 Oct 2026. About the data.

What to do

Advisories and patches

The CVE record links no vendor advisory, patch or mitigation.

This summary is based on the CVE record as of 30 Oct 2026. Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

Versions by product, as listed in the CVE record (1 product)

D-Link DNS-343 ShareCenter
Status	Versions
Affected	1.05 and earlier

Versions not listed are: unaffected.

Source: CVE List, as of 30 Oct 2026. About the data.

Weakness

CWE-78, 1 CAPEC

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Attack patterns (CAPEC)

CAPEC-88: OS Command Injection

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.

Timeline

Date	Event
29 Oct 2025	CVE record published
14 May 2026	CVE record last updated

References

vulncheck.com (Third-party advisory)
github.com (Technical description, Exploit)
exploit-db.com (Exploit)
qkl.seebug.org (Exploit)
dlink.com

Known exploited D-Link vulnerabilities

CVE-2025-29635: D-Link DIR-823X Command Injection Vulnerability (added 24 Apr 2026)
CVE-2022-37055: D-Link Routers Buffer Overflow Vulnerability (added 8 Dec 2025)
CVE-2020-25078: D-Link DCS-2530L and DCS-2670L Devices Unspecified Vulnerability (added 5 Aug 2025)
CVE-2020-25079: D-Link DCS-2530L and DCS-2670L Command Injection Vulnerability (added 5 Aug 2025)
CVE-2022-40799: D-Link DNR-322L Download of Code Without Integrity Check Vulnerability (added 5 Aug 2025)