How severe is CVE-2017-9542?

CVE-2017-9542 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-2017-9542 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-2017-9542?

CVE-2017-9542 affects D-link Dir-615 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-9542?

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.

When was CVE-2017-9542 published?

CVE-2017-9542 was published on 2017-06-11 and last updated on 2026-06-17.

CVE-2017-9542

CVE-2017-9542 is a critical-severity vulnerability in D-link Dir-615 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-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: D-link Dir-615 Firmware
Published: 2017-06-11
Last modified: 2026-06-17

Description

D-Link DIR-615 Wireless N 300 Router allows authentication bypass via a modified POST request to login.cgi. This issue occurs because it fails to validate the password field. Successful exploitation of this issue allows an attacker to take control of the affected device.

Frequently asked questions

What is CVE-2017-9542?: D-Link DIR-615 Wireless N 300 Router allows authentication bypass via a modified POST request to login.cgi. This issue occurs because it fails to validate the password field. Successful exploitation of this issue allows an attacker to take control of the affected device.
How severe is CVE-2017-9542?: CVE-2017-9542 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-2017-9542 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-2017-9542?: CVE-2017-9542 affects D-link Dir-615 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-9542?: 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.
When was CVE-2017-9542 published?: CVE-2017-9542 was published on 2017-06-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:d-link:dir-615_firmware:*:*:*:*:*:*:*:*

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Other CWE-287 (Improper Authentication) vulnerabilities

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