How severe is CVE-2017-3191?

CVE-2017-3191 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-2017-3191 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 63% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-3191?

CVE-2017-3191 primarily affects D-link Dir-130 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-3191?

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-2017-3191 published?

CVE-2017-3191 was published on 2017-12-16 and last updated on 2026-06-17.

CVE-2017-3191

CVE-2017-3191 is a critical-severity vulnerability in D-link Dir-130 Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 63% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-20.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 5.0
EPSS exploit prediction: 63% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: D-link Dir-130 Firmware
Published: 2017-12-16
Last modified: 2026-06-17

Description

D-Link DIR-130 firmware version 1.23 and DIR-330 firmware version 1.12 are vulnerable to authentication bypass of the remote login page. A remote attacker that can access the remote management login page can manipulate the POST request in such a manner as to access some administrator-only pages such as tools_admin.asp without credentials.

Frequently asked questions

What is CVE-2017-3191?: D-Link DIR-130 firmware version 1.23 and DIR-330 firmware version 1.12 are vulnerable to authentication bypass of the remote login page. A remote attacker that can access the remote management login page can manipulate the POST request in such a manner as to access some administrator-only pages such as tools_admin.asp without credentials.
How severe is CVE-2017-3191?: CVE-2017-3191 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-2017-3191 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 63% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-3191?: CVE-2017-3191 primarily affects D-link Dir-130 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-3191?: 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-2017-3191 published?: CVE-2017-3191 was published on 2017-12-16 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:d-link:dir-130_firmware:1.23:*:*:*:*:*:*:*
cpe:2.3:o:d-link:dir-330_firmware:1.12:*:*:*:*:*:*:*

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