CVE-2026-75616Exploit(tp-link / archer_c20)

MEDIUMCVSS 6.8 · MEDIUM

Exploit discussion active in current signal (2 latest mentions)

Immediate actions

  • Patch tp-link archer_c20 systems immediately
  • Hunt for exploitation attempts and persistence artifacts
  • Increase monitoring for publicly documented tradecraft

Recommended action window: High priority (within 72h)

NVD description

An OS command injection vulnerability exists in the web management interface of Archer C20 v6 firmware when processing certain WAN-related configuration operations. An authenticated administrator may exploit insufficient input validation to execute arbitrary system commands, potentially resulting in full device compromise. Successful exploitation may allow arbitrary command execution with elevated privileges, compromising the confidentiality, integrity, and availability of the affected device and network traffic passing through it.

4.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-78

Priority

MEDIUM

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • archer_c20
  • archer_c20_firmware

Threat summary

  • Public PoC and exploit tooling are both present
  • Patch or workaround signal is available
  • 2 mentions across 1 observed day

What's happening

  • Exploit tool or code specified in 1 signal
  • PoC mentioned or linked in 1 signal
  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • 2 total mentions across 1 day

Affected systems

Vendors
Products
archer_c20archer_c20_firmware

1 version affected across 2 products

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-08-24: 2PoC Mentioned / Linked · 2026-08-24: 1Exploit Tool / Code · 2026-08-24: 1Patch / Workaround · 2026-08-24: 1Technical Details · 2026-08-24: 208-24
Signal classification2 categories
Exploit
150.0%
Patch
150.0%
Referenced assets2 URLs
Full discourse2 posts
  • dbugs@ptdbugs
    Exploit

    A PoC/exploit has been discovered for vulnerability CVE-2026-75616 Vendor: TP-Link Systems Inc. Product: Archer C20 v6 Description: An OS command injection vulnerability exists in the web management interface of Archer C20 v6 firmware when processing certain WAN-related configuration operations. An authenticated administrator may exploit insufficient input validation to execute arbitrary system commands, potentially resulting in full device compromise. Successful exploitation may allow arbitrary command execution with elevated privileges, compromising the confidentiality, integrity, and availability of the affected device and network traffic passing through it. Link: https://github.com/totekuh/cve-2026-75616 #dbugs_vuln

    Post summary

    A proof‑of‑concept exploit for CVE‑2026‑75616 was published on GitHub, demonstrating OS command injection via the Archer C20 v6 web interface for authenticated administrators. No evidence of active attacks or patches is mentioned.

    02083912
    3.6K followersView on X
  • Daily CyberSecurity@Daily_CyberSec
    Patch

    TP-Link patches CVE-2026-75616, an Archer C20 command injection flaw that can lead to full device compromise. Update firmware now. #TPLink #ArcherC20 #CommandInjection #CVE #RouterSecurity #InfoSec #PatchNow http://securityonline.info/tp-link-archer-c20-cve-2026-75616/

    Post summary

    TP‑Link has issued a firmware update for CVE‑2026‑75616, a command‑injection vulnerability in the Archer C20 that could allow full device compromise. Users are urged to update firmware immediately to mitigate the risk.

    01030514
    13.0K followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
HWtp-linkarcher_c206.0--
OStp-linkarcher_c20_firmware---

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