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CVE-2017-14426

23
FAUCET Score

CVE-2017-14426 describes a critical vulnerability in D-Link DIR-850L REV. A and REV. B routers, where insecure file permissions (0644) are set for the /var/etc/shadow file, a symlink to /etc/shadow. This allows an authenticated local attacker to read, modify, or delete the shadow file, leading to a complete compromise of the device. With a CVSS score of 7.8 (High), this flaw grants an attacker full confidentiality, integrity, and availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< fw114wwb07_h2abCPE matchmatch criteria
cpe:2.3:o:dlink:dir-850l_firmware:*:*:*:*:*:*:*:*
fw114wwb07_h2abCPE matchmatch criteria
cpe:2.3:o:dlink:dir-850l_firmware:fw114wwb07_h2ab:beta1:*:*:*:*:*:*
<= fw208wwb02CPE matchmatch criteria
cpe:2.3:o:dlink:dir-850l_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.34%
Probability of exploitation in next 30 days
EPSS Percentile
26.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0034 is in the 65th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

pierrekim.github.io / blog/2017-09-08-dlink-850l-mydlink-cloud-0days-vulnerabilities.html
ExploitThird Party Advisory