How severe is CVE-2017-16934?

CVE-2017-16934 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-2017-16934 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-16934?

CVE-2017-16934 affects Dbltek Web Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-16934?

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-2017-16934 published?

CVE-2017-16934 was published on 2017-11-24 and last updated on 2026-06-17.

CVE-2017-16934

CVE-2017-16934 is a critical-severity vulnerability in Dbltek Web Server with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 13% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 13% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Dbltek Web Server
Published: 2017-11-24
Last modified: 2026-06-17

Description

The web server on DBL DBLTek devices allows remote attackers to execute arbitrary OS commands by obtaining the admin password via a frame.html?content=/dev/mtdblock/5 request, and then using this password for the HTTP Basic Authentication needed for a change_password.csp request, which supports a "<%%25call system.exec:" string in the passwd parameter.

Frequently asked questions

What is CVE-2017-16934?: The web server on DBL DBLTek devices allows remote attackers to execute arbitrary OS commands by obtaining the admin password via a frame.html?content=/dev/mtdblock/5 request, and then using this password for the HTTP Basic Authentication needed for a change_password.csp request, which supports a "<%%25call system.exec:" string in the passwd parameter.
How severe is CVE-2017-16934?: CVE-2017-16934 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-2017-16934 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-16934?: CVE-2017-16934 affects Dbltek Web Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-16934?: 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-2017-16934 published?: CVE-2017-16934 was published on 2017-11-24 and last updated on 2026-06-17.

References

https://blogs.securiteam.com/index.php/archives/3437

Affected products (1)

cpe:2.3:a:dbltek:web_server:-:*:*:*:*:*:*:*

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