How severe is CVE-2023-39935?

CVE-2023-39935 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-39935 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-39935?

CVE-2023-39935 affects Tp-link Archer C5400 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-39935?

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-2023-39935 published?

CVE-2023-39935 was published on 2023-09-06 and last updated on 2026-06-17.

CVE-2023-39935

CVE-2023-39935 is a high-severity vulnerability in Tp-link Archer C5400 Firmware with a CVSS 3.x base score of 8.0. 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 8.0)
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Tp-link Archer C5400 Firmware
Published: 2023-09-06
Last modified: 2026-06-17

Description

Archer C5400 firmware versions prior to 'Archer C5400(JP)_V2_230506' allows a network-adjacent authenticated attacker to execute arbitrary OS commands.

Frequently asked questions

What is CVE-2023-39935?: Archer C5400 firmware versions prior to 'Archer C5400(JP)_V2_230506' allows a network-adjacent authenticated attacker to execute arbitrary OS commands.
How severe is CVE-2023-39935?: CVE-2023-39935 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-39935 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-39935?: CVE-2023-39935 affects Tp-link Archer C5400 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-39935?: 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-2023-39935 published?: CVE-2023-39935 was published on 2023-09-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tp-link:archer_c5400_firmware:*:*:*:*:*:*:*:*

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