SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-8220

TP-Link C2 and C20i devices through firmware 0.9.1 4.2 v0032.0 Build 160706 Rel.37961n allow remote code execution with a single HTTP request by placing shell commands in a "host=" line within HTTP POST data.

CRITICAL 9.9EPSS 37.2%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 37.2%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

Description

TP-Link C2 and C20i devices through firmware 0.9.1 4.2 v0032.0 Build 160706 Rel.37961n allow remote code execution with a single HTTP request by placing shell commands in a "host=" line within HTTP POST data.

CVSS 3.0
9.9 CRITICALCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS
37.17% probability · 99th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-78
Affected
tp-link/c2 firmware · tp-link/c20i firmware
Source
cve@mitre.org
EPSS trend
0%20%40%21 September 2026: 27.60%22 September 2026: 36.59%27 October 2026: 37.17%21 September 202627 October 2026

EPSS moved from 27.6% on 21 September 2026 to 37.2% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.