How severe is CVE-2025-9090?

CVE-2025-9090 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2025-9090 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 15% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-9090?

CVE-2025-9090 affects Tenda Ac20 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-9090?

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

Does CVE-2025-9090 have an EU (EUVD) identifier?

Yes. CVE-2025-9090 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25139.

When was CVE-2025-9090 published?

CVE-2025-9090 was published on 2025-08-17 and last updated on 2026-06-17.

CVE-2025-9090

CVE-2025-9090 is a medium-severity vulnerability in Tenda Ac20 Firmware with a CVSS 3.x base score of 6.3. Its EPSS exploit-prediction score of 15% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-74.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v2: 6.5
CVSS v4: 2.1
EPSS exploit prediction: 15% (97th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-25139
Weakness: CWE-74
Affected product: Tenda Ac20 Firmware
Published: 2025-08-17
Last modified: 2026-06-17

Description

A vulnerability was identified in Tenda AC20 16.03.08.12. Affected is the function websFormDefine of the file /goform/telnet of the component Telnet Service. The manipulation leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Frequently asked questions

What is CVE-2025-9090?: A vulnerability was identified in Tenda AC20 16.03.08.12. Affected is the function websFormDefine of the file /goform/telnet of the component Telnet Service. The manipulation leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
How severe is CVE-2025-9090?: CVE-2025-9090 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-9090 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 15% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-9090?: CVE-2025-9090 affects Tenda Ac20 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-9090?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-9090 have an EU (EUVD) identifier?: Yes. CVE-2025-9090 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25139.
When was CVE-2025-9090 published?: CVE-2025-9090 was published on 2025-08-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tenda:ac20_firmware:16.03.08.12:*:*:*:*:*:*:*

More vulnerabilities in Tenda Ac20 Firmware

CVE-2025-15356 — High (CVSS 8.8): A vulnerability has been found in Tenda AC20 up to 16.03.08.12. The impacted element is the function sscanf of the file…
CVE-2025-14656 — High (CVSS 8.8): A weakness has been identified in Tenda AC20 16.03.08.12. This affects the function httpd of the file…
CVE-2025-14655 — High (CVSS 8.8): A security flaw has been discovered in Tenda AC20 16.03.08.12. The impacted element is the function formSetRebootTimer…
CVE-2025-14654 — High (CVSS 8.8): A vulnerability was identified in Tenda AC20 16.03.08.12. The affected element is the function formSetPPTPUserList of…
CVE-2025-13258 — High (CVSS 8.8): A vulnerability was detected in Tenda AC20 up to 16.03.08.12. The impacted element is an unknown function of the file…
CVE-2025-11385 — High (CVSS 8.8): A vulnerability has been found in Tenda AC20 up to 16.03.08.12. The affected element is the function sscanf of the file…

All CVEs affecting Tenda Ac20 Firmware →

Other CWE-74 (Improper Neutralization of Special Elements (Injection)) vulnerabilities

CVE-2026-105135 — Critical (CVSS 10.0): A vulnerability has been found in InternLM MindSearch 0.1.0. This issue affects the function ExecutionAction.run of the…
CVE-2026-61732 — Critical (CVSS 10.0): Decepticon is an autonomous hacking agent for red teams. Versions prior to 1.1.17 wrap web crawl results — the output…
CVE-2026-94097 — Critical (CVSS 10.0): A vulnerability was determined in Netcore NBR200V2 1.3.241127.071246. This affects an unknown part of the file…
CVE-2026-20130 — Critical (CVSS 10.0): As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Identity Services Engine…
CVE-2026-82971 — Critical (CVSS 10.0): A vulnerability was determined in QVidium Opera11 3.3.2a26-Ax4x-opera11. This affects an unknown part of the file…
CVE-2026-54159 — Critical (CVSS 10.0): PrestaShop ps_facetedsearch is a module that adds layered navigation filters. From 3.0.0 until 4.0.4, the…

Browse all CWE-74 (Improper Neutralization of Special Elements (Injection)) vulnerabilities →