How severe is CVE-2017-16957?

CVE-2017-16957 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-16957 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-16957?

CVE-2017-16957 primarily affects Tp-link Tl-wvr300 Firmware. In total, 53 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-16957?

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-2017-16957 published?

CVE-2017-16957 was published on 2017-11-27 and last updated on 2026-06-17.

CVE-2017-16957

CVE-2017-16957 is a high-severity vulnerability in Tp-link Tl-wvr300 Firmware with a CVSS 3.x base score of 8.8. 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-78.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
EPSS exploit prediction: 6% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Tp-link Tl-wvr300 Firmware
Published: 2017-11-27
Last modified: 2026-06-17

Description

TP-Link TL-WVR, TL-WAR, TL-ER, and TL-R devices allow remote authenticated users to execute arbitrary commands via shell metacharacters in the iface field of an admin/diagnostic command to cgi-bin/luci, related to the zone_get_effect_devices function in /usr/lib/lua/luci/controller/admin/diagnostic.lua in uhttpd.

Frequently asked questions

What is CVE-2017-16957?: TP-Link TL-WVR, TL-WAR, TL-ER, and TL-R devices allow remote authenticated users to execute arbitrary commands via shell metacharacters in the iface field of an admin/diagnostic command to cgi-bin/luci, related to the zone_get_effect_devices function in /usr/lib/lua/luci/controller/admin/diagnostic.lua in uhttpd.
How severe is CVE-2017-16957?: CVE-2017-16957 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-16957 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-16957?: CVE-2017-16957 primarily affects Tp-link Tl-wvr300 Firmware. In total, 53 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-16957?: 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-2017-16957 published?: CVE-2017-16957 was published on 2017-11-27 and last updated on 2026-06-17.

References

Affected products (53)

cpe:2.3:o:tp-link:tl-wvr300_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-wvr302_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-wvr450_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-wvr450l_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-wvr450g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-wvr458_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-wvr458l_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-wvr458p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-wvr900g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-wvr900l_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-wvr1200l_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-wvr1300l_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-wvr1300g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-wvr1750l_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-war2600l_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-wvr4300l_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-war302_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-war450_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-war450l_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-war458_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-war458l_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-war900l_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-war1200l_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-war1300l_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-war1750l_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-er3210g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-er3220g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-er5110g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-er5120g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-er5510g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-er5520g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-er6110g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-er6120g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-er6220g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-er6510g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-er6520g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-er7520g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-r473_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-r473g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-r473p-ac_firmware:-:*:*:*:*:*:*:*

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