How severe is CVE-2017-11436?

CVE-2017-11436 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-2017-11436 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-11436?

CVE-2017-11436 affects Dlink Dir-615. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-11436?

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-2017-11436 published?

CVE-2017-11436 was published on 2017-07-19 and last updated on 2026-06-17.

CVE-2017-11436

CVE-2017-11436 is a critical-severity vulnerability in Dlink Dir-615 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-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Dlink Dir-615
Published: 2017-07-19
Last modified: 2026-06-17

Description

D-Link DIR-615 before v20.12PTb04 has a second admin account with a 0x1 BACKDOOR value, which might allow remote attackers to obtain access via a TELNET connection.

Frequently asked questions

What is CVE-2017-11436?: D-Link DIR-615 before v20.12PTb04 has a second admin account with a 0x1 BACKDOOR value, which might allow remote attackers to obtain access via a TELNET connection.
How severe is CVE-2017-11436?: CVE-2017-11436 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-2017-11436 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-11436?: CVE-2017-11436 affects Dlink Dir-615. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-11436?: 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-2017-11436 published?: CVE-2017-11436 was published on 2017-07-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dlink:dir-615:*:*:*:*:*:*:*:*

More vulnerabilities in Dlink Dir-615

CVE-2017-7406 — Critical (CVSS 9.8): The D-Link DIR-615 device before v20.12PTb04 doesn't use SSL for any of the authenticated pages. Also, it doesn't allow…
CVE-2017-7405 — Critical (CVSS 9.8): On the D-Link DIR-615 before v20.12PTb04, once authenticated, this device identifies the user based on the IP address…
CVE-2017-7404 — High (CVSS 8.8): On the D-Link DIR-615 before v20.12PTb04, if a victim logged in to the Router's Web Interface visits a malicious site…
CVE-2009-4821 — Medium (CVSS 5.0): The D-Link DIR-615 with firmware 3.10NA does not require administrative authentication for apply.cgi, which allows…

All CVEs affecting Dlink Dir-615 →

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