How severe is CVE-2025-51087?

CVE-2025-51087 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability low.

Is CVE-2025-51087 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-51087?

CVE-2025-51087 affects Tenda Ac8 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-51087?

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-2025-51087 have an EU (EUVD) identifier?

Yes. CVE-2025-51087 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-22524.

When was CVE-2025-51087 published?

CVE-2025-51087 was published on 2025-07-24 and last updated on 2026-07-05.

CVE-2025-51087

CVE-2025-51087 is a high-severity vulnerability in Tenda Ac8 Firmware with a CVSS 3.x base score of 8.6. 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: High (CVSS 3.x base score 8.6)
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-22524
Weakness: CWE-121
Affected product: Tenda Ac8 Firmware
Published: 2025-07-24
Last modified: 2026-07-05

Description

Tenda AC8V4 V16.03.34.06` was discovered to contain stack overflow at /goform/saveParentControlInfo. The manipulation of the argument time leads to stack-based buffer overflow.

Frequently asked questions

What is CVE-2025-51087?: Tenda AC8V4 V16.03.34.06` was discovered to contain stack overflow at /goform/saveParentControlInfo. The manipulation of the argument time leads to stack-based buffer overflow.
How severe is CVE-2025-51087?: CVE-2025-51087 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability low.
Is CVE-2025-51087 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-51087?: CVE-2025-51087 affects Tenda Ac8 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-51087?: 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-2025-51087 have an EU (EUVD) identifier?: Yes. CVE-2025-51087 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-22524.
When was CVE-2025-51087 published?: CVE-2025-51087 was published on 2025-07-24 and last updated on 2026-07-05.

References

https://github.com/TL-SN/IOT/blob/main/Tenda/Tenda-AC8v4%20%20V16.03.34.06/CVE-2025-51087.md

EU advisories (EUVD)

http://tenda.com

Affected products (1)

cpe:2.3:o:tenda:ac8_firmware:16.03.34.06:*:*:*:*:*:*:*

More vulnerabilities in Tenda Ac8 Firmware

CVE-2026-4254 — Critical (CVSS 9.8): A weakness has been identified in Tenda AC8 up to 16.03.50.11. This vulnerability affects the function doSystemCmd of…
CVE-2026-4252 — Critical (CVSS 9.8): A vulnerability was identified in Tenda AC8 16.03.50.11. Affected by this issue is the function check_is_ipv6 of the…
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CVE-2025-25664 — Critical (CVSS 9.8): Tenda AC8V4 V16.03.34.06 was discovered to contain a stack overflow via the shareSpeed parameter in the sub_49E098…

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