How severe is CVE-2017-14426?

CVE-2017-14426 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-14426 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-14426?

CVE-2017-14426 primarily affects Dlink Dir-850l 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-2017-14426?

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

When was CVE-2017-14426 published?

CVE-2017-14426 was published on 2017-09-13 and last updated on 2026-06-17.

CVE-2017-14426

CVE-2017-14426 is a high-severity vulnerability in Dlink Dir-850l Firmware with a CVSS 3.x base score of 7.8. 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: High (CVSS 3.x base score 7.8)
CVSS v2: 2.1
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Dlink Dir-850l Firmware
Published: 2017-09-13
Last modified: 2026-06-17

Description

D-Link DIR-850L REV. A (with firmware through FW114WWb07_h2ab_beta1) and REV. B (with firmware through FW208WWb02) devices have 0644 /var/etc/shadow (aka the /etc/shadow symlink target) permissions.

Frequently asked questions

What is CVE-2017-14426?: D-Link DIR-850L REV. A (with firmware through FW114WWb07_h2ab_beta1) and REV. B (with firmware through FW208WWb02) devices have 0644 /var/etc/shadow (aka the /etc/shadow symlink target) permissions.
How severe is CVE-2017-14426?: CVE-2017-14426 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-14426 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-14426?: CVE-2017-14426 primarily affects Dlink Dir-850l 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-2017-14426?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2017-14426 published?: CVE-2017-14426 was published on 2017-09-13 and last updated on 2026-06-17.

References

https://pierrekim.github.io/blog/2017-09-08-dlink-850l-mydlink-cloud-0days-vulnerabilities.html

Affected products (2)

cpe:2.3:o:dlink:dir-850l_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dir-850l_firmware:fw114wwb07_h2ab:beta1:*:*:*:*:*:*

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CVE-2017-14429 — Critical (CVSS 9.8): The DHCP client on D-Link DIR-850L REV. A (with firmware through FW114WWb07_h2ab_beta1) and REV. B (with firmware…
CVE-2017-14421 — Critical (CVSS 9.8): D-Link DIR-850L REV. B (with firmware through FW208WWb02) devices have a hardcoded password of…

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