How severe is CVE-2026-34124?

CVE-2026-34124 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-34124 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-34124?

CVE-2026-34124 affects Tp-link Tapo C520ws Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-34124?

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

Does CVE-2026-34124 have an EU (EUVD) identifier?

Yes. CVE-2026-34124 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18436.

When was CVE-2026-34124 published?

CVE-2026-34124 was published on 2026-04-02 and last updated on 2026-06-17.

CVE-2026-34124

CVE-2026-34124 is a medium-severity vulnerability in Tp-link Tapo C520ws Firmware with a CVSS 3.x base score of 6.5. 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-120.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 7.1
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-18436
Weakness: CWE-120
Affected product: Tp-link Tapo C520ws Firmware
Published: 2026-04-02
Last modified: 2026-06-17

Description

A denial-of-service vulnerability was identified in TP-Link Tapo C520WS v2.6 within the HTTP request path parsing logic. The implementation enforces length restrictions on the raw request path but does not account for path expansion performed during normalization. An attacker on the adjacent network may send a crafted HTTP request to cause buffer overflow and memory corruption, leading to system interruption or device reboot.

Frequently asked questions

What is CVE-2026-34124?: A denial-of-service vulnerability was identified in TP-Link Tapo C520WS v2.6 within the HTTP request path parsing logic. The implementation enforces length restrictions on the raw request path but does not account for path expansion performed during normalization. An attacker on the adjacent network may send a crafted HTTP request to cause buffer overflow and memory corruption, leading to system interruption or device reboot.
How severe is CVE-2026-34124?: CVE-2026-34124 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-34124 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-34124?: CVE-2026-34124 affects Tp-link Tapo C520ws Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-34124?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-34124 have an EU (EUVD) identifier?: Yes. CVE-2026-34124 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18436.
When was CVE-2026-34124 published?: CVE-2026-34124 was published on 2026-04-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tp-link:tapo_c520ws_firmware:*:*:*:*:*:*:*:*

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