How severe is CVE-2026-75616?

CVE-2026-75616 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-75616 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-75616?

CVE-2026-75616 affects Tp-link Archer C20 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-75616?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-75616 published?

CVE-2026-75616 was published on 2026-08-19 and last updated on 2026-09-08.

CVE-2026-75616

CVE-2026-75616 is a medium-severity vulnerability in Tp-link Archer C20 Firmware with a CVSS 3.x base score of 6.8. 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: Medium (CVSS 3.x base score 6.8)
CVSS v4: 8.5
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Tp-link Archer C20 Firmware
Published: 2026-08-19
Last modified: 2026-09-08

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.

Frequently asked questions

What is CVE-2026-75616?: 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.
How severe is CVE-2026-75616?: CVE-2026-75616 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-75616 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-75616?: CVE-2026-75616 affects Tp-link Archer C20 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-75616?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-75616 published?: CVE-2026-75616 was published on 2026-08-19 and last updated on 2026-09-08.

References

Affected products (1)

cpe:2.3:o:tp-link:archer_c20_firmware:*:*:*:*:*:*:*:*

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