How severe is CVE-2025-60340?

CVE-2025-60340 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-60340 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-60340?

CVE-2025-60340 affects Tenda Ac6 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-60340?

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.

Does CVE-2025-60340 have an EU (EUVD) identifier?

Yes. CVE-2025-60340 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-35615.

When was CVE-2025-60340 published?

CVE-2025-60340 was published on 2025-10-22 and last updated on 2026-06-17.

CVE-2025-60340

CVE-2025-60340 is a high-severity vulnerability in Tenda Ac6 Firmware with a CVSS 3.x base score of 7.5. 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: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-35615
Weakness: CWE-120
Affected product: Tenda Ac6 Firmware
Published: 2025-10-22
Last modified: 2026-06-17

Description

Multiple buffer overflows in the SetClientState function of Tenda AC6 v.15.03.06.50 allows attackers to cause a Denial of Service (DoS) via injecting a crafted payload into the limitSpeed, deviceId, and limitSpeedUp parameters.

Frequently asked questions

What is CVE-2025-60340?: Multiple buffer overflows in the SetClientState function of Tenda AC6 v.15.03.06.50 allows attackers to cause a Denial of Service (DoS) via injecting a crafted payload into the limitSpeed, deviceId, and limitSpeedUp parameters.
How severe is CVE-2025-60340?: CVE-2025-60340 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-60340 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-60340?: CVE-2025-60340 affects Tenda Ac6 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-60340?: 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.
Does CVE-2025-60340 have an EU (EUVD) identifier?: Yes. CVE-2025-60340 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-35615.
When was CVE-2025-60340 published?: CVE-2025-60340 was published on 2025-10-22 and last updated on 2026-06-17.

References

https://github.com/z472421519/BinaryAudit/blob/main/PoC/BOF/Tenda/SetClientState/SetClientState.md

Affected products (1)

cpe:2.3:o:tenda:ac6_firmware:15.03.06.50:*:*:*:*:*:*:*

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CVE-2025-29031 — Critical (CVSS 9.8): Tenda AC6 v15.03.05.16 was discovered to contain a buffer overflow via the fromAddressNat function.
CVE-2025-29030 — Critical (CVSS 9.8): Tenda AC6 v15.03.05.16 was discovered to contain a buffer overflow via the formWifiWpsOOB function.
CVE-2025-29029 — Critical (CVSS 9.8): Tenda AC6 v15.03.05.16 was discovered to contain a buffer overflow via the formSetSpeedWan function.
CVE-2025-25343 — Critical (CVSS 9.8): Tenda AC6 V15.03.05.16 firmware has a buffer overflow vulnerability in the formexeCommand function.

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