How severe is CVE-2025-29135?

CVE-2025-29135 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-29135 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-29135?

CVE-2025-29135 affects Tenda Ac7 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-29135?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-29135 have an EU (EUVD) identifier?

Yes. CVE-2025-29135 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-8017.

When was CVE-2025-29135 published?

CVE-2025-29135 was published on 2025-03-24 and last updated on 2026-06-17.

CVE-2025-29135

CVE-2025-29135 is a critical-severity vulnerability in Tenda Ac7 Firmware with a CVSS 3.x base score of 9.8. 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-121.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-8017
Weakness: CWE-121
Affected product: Tenda Ac7 Firmware
Published: 2025-03-24
Last modified: 2026-06-17

Description

A stack-based buffer overflow vulnerability in Tenda AC7 V15.03.06.44 allows a remote attacker to execute arbitrary code through a stack overflow attack using the security parameter of the formWifiBasicSet function.

Frequently asked questions

What is CVE-2025-29135?: A stack-based buffer overflow vulnerability in Tenda AC7 V15.03.06.44 allows a remote attacker to execute arbitrary code through a stack overflow attack using the security parameter of the formWifiBasicSet function.
How severe is CVE-2025-29135?: CVE-2025-29135 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-29135 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-29135?: CVE-2025-29135 affects Tenda Ac7 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-29135?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-29135 have an EU (EUVD) identifier?: Yes. CVE-2025-29135 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-8017.
When was CVE-2025-29135 published?: CVE-2025-29135 was published on 2025-03-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tenda:ac7_firmware:15.03.06.44:*:*:*:*:*:*:*

More vulnerabilities in Tenda Ac7 Firmware

CVE-2025-29137 — Critical (CVSS 9.8): Tenda AC7 V1.0 V15.03.06.44 found a buffer overflow caused by the timeZone parameter in the form_fast_setting_wifi_set…
CVE-2024-32301 — Critical (CVSS 9.8): Tenda AC7V1.0 v15.03.06.44 firmware has a stack overflow vulnerability via the PPW parameter in the fromWizardHandle…
CVE-2023-41562 — Critical (CVSS 9.8): Tenda AC7 V1.0 V15.03.06.44, Tenda AC9 V3.0 V15.03.06.42_multi, and Tenda AC5 US_AC5V1.0RTL_V15.03.06.28 were…
CVE-2023-41559 — Critical (CVSS 9.8): Tenda AC7 V1.0 V15.03.06.44, Tenda AC9 V3.0 V15.03.06.42_multi, and Tenda AC5 V1.0RTL_V15.03.06.28 were discovered to…
CVE-2023-41558 — Critical (CVSS 9.8): Tenda AC7 V1.0 V15.03.06.44 was discovered to contain a stack overflow via parameter timeZone at url…
CVE-2023-41557 — Critical (CVSS 9.8): Tenda AC7 V1.0 V15.03.06.44 and Tenda AC5 V1.0RTL_V15.03.06.28 were discovered to contain a stack overflow via…

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