How severe is CVE-2018-25115?

CVE-2018-25115 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-25115 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-25115?

CVE-2018-25115 primarily affects Dlink Dir-110 Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-25115?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2018-25115 have an EU (EUVD) identifier?

Yes. CVE-2018-25115 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2018-21602.

When was CVE-2018-25115 published?

CVE-2018-25115 was published on 2025-08-27 and last updated on 2026-06-17.

CVE-2018-25115

CVE-2018-25115 is a critical-severity vulnerability in Dlink Dir-110 Firmware with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
CVSS v4: 10.0
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2018-21602
Weakness: CWE-78
Affected product: Dlink Dir-110 Firmware
Published: 2025-08-27
Last modified: 2026-06-17

Description

Multiple D-Link DIR-series routers, including DIR-110, DIR-412, DIR-600, DIR-610, DIR-615, DIR-645, and DIR-815 firmware version 1.03, contain a vulnerability in the service.cgi endpoint that allows remote attackers to execute arbitrary system commands without authentication. The flaw stems from improper input handling in the EVENT=CHECKFW parameter, which is passed directly to the system shell without sanitization. A crafted HTTP POST request can inject commands that are executed with root privileges, resulting in full device compromise. These router models are no longer supported at the time of assignment and affected version ranges may vary. Exploitation evidence was first observed by the Shadowserver Foundation on 2025-08-21 UTC.

Frequently asked questions

What is CVE-2018-25115?: Multiple D-Link DIR-series routers, including DIR-110, DIR-412, DIR-600, DIR-610, DIR-615, DIR-645, and DIR-815 firmware version 1.03, contain a vulnerability in the service.cgi endpoint that allows remote attackers to execute arbitrary system commands without authentication. The flaw stems from improper input handling in the EVENT=CHECKFW parameter, which is passed directly to the system shell without sanitization. A crafted HTTP POST request can inject commands that are executed with root privileges, resulting in full device compromise. These router models are no longer supported at the time of assignment and affected version ranges may vary. Exploitation evidence was first observed by the Shadowserver Foundation on 2025-08-21 UTC.
How severe is CVE-2018-25115?: CVE-2018-25115 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-25115 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-25115?: CVE-2018-25115 primarily affects Dlink Dir-110 Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-25115?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2018-25115 have an EU (EUVD) identifier?: Yes. CVE-2018-25115 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2018-21602.
When was CVE-2018-25115 published?: CVE-2018-25115 was published on 2025-08-27 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:o:dlink:dir-110_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dir-412_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dir-600_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dir-610_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dir-615_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dir-645_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dir-815_firmware:1.03:*:*:*:*:*:*:*

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