How severe is CVE-2026-30140?

CVE-2026-30140 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 high, integrity none, and availability none.

Is CVE-2026-30140 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-30140?

CVE-2026-30140 affects Tenda W15e Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-30140?

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-2026-30140 have an EU (EUVD) identifier?

Yes. CVE-2026-30140 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10346.

When was CVE-2026-30140 published?

CVE-2026-30140 was published on 2026-03-09 and last updated on 2026-06-17.

CVE-2026-30140

CVE-2026-30140 is a high-severity vulnerability in Tenda W15e 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-284.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-10346
Weakness: CWE-284
Affected product: Tenda W15e Firmware
Published: 2026-03-09
Last modified: 2026-06-17

Description

An incorrect access control vulnerability exists in Tenda W15E V02.03.01.26_cn. An unauthenticated attacker can access the /cgi-bin/DownloadCfg/RouterCfm.jpg endpoint to download the configuration file containing plaintext administrator credentials, leading to sensitive information disclosure and potential remote administrative access.

Frequently asked questions

What is CVE-2026-30140?: An incorrect access control vulnerability exists in Tenda W15E V02.03.01.26_cn. An unauthenticated attacker can access the /cgi-bin/DownloadCfg/RouterCfm.jpg endpoint to download the configuration file containing plaintext administrator credentials, leading to sensitive information disclosure and potential remote administrative access.
How severe is CVE-2026-30140?: CVE-2026-30140 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 high, integrity none, and availability none.
Is CVE-2026-30140 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-30140?: CVE-2026-30140 affects Tenda W15e Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-30140?: 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-2026-30140 have an EU (EUVD) identifier?: Yes. CVE-2026-30140 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10346.
When was CVE-2026-30140 published?: CVE-2026-30140 was published on 2026-03-09 and last updated on 2026-06-17.

References

https://github.com/jhx-ui/CVE-Reports/blob/main/README.md#vulnerability-report-tenda-router-sensitive-information-disclosure

Affected products (1)

cpe:2.3:o:tenda:w15e_firmware:02.03.01.26_cn:*:*:*:*:*:*:*

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