How severe is CVE-2026-7607?

CVE-2026-7607 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-7607 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-7607?

CVE-2026-7607 affects Trendnet Tew-821dap Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-7607?

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-2026-7607 have an EU (EUVD) identifier?

Yes. CVE-2026-7607 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26761.

When was CVE-2026-7607 published?

CVE-2026-7607 was published on 2026-05-02 and last updated on 2026-06-17.

CVE-2026-7607

CVE-2026-7607 is a high-severity vulnerability in Trendnet Tew-821dap Firmware with a CVSS 3.x base score of 8.8. 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-119.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
CVSS v4: 8.7
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-26761
Weakness: CWE-119
Affected product: Trendnet Tew-821dap Firmware
Published: 2026-05-02
Last modified: 2026-06-17

Description

A security vulnerability has been detected in TRENDnet TEW-821DAP 1.12B01. Impacted is the function auto_update_firmware of the component Firmware Udpate. The manipulation of the argument str leads to buffer overflow. The attack may be initiated remotely. The vendor explains: "That firmware version will only work on our hardware version v1.xR. We have already EOL that product 8 years ago and are no longer selling". This vulnerability only affects products that are no longer supported by the maintainer.

Frequently asked questions

What is CVE-2026-7607?: A security vulnerability has been detected in TRENDnet TEW-821DAP 1.12B01. Impacted is the function auto_update_firmware of the component Firmware Udpate. The manipulation of the argument str leads to buffer overflow. The attack may be initiated remotely. The vendor explains: "That firmware version will only work on our hardware version v1.xR. We have already EOL that product 8 years ago and are no longer selling". This vulnerability only affects products that are no longer supported by the maintainer.
How severe is CVE-2026-7607?: CVE-2026-7607 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-7607 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-7607?: CVE-2026-7607 affects Trendnet Tew-821dap Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-7607?: 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-2026-7607 have an EU (EUVD) identifier?: Yes. CVE-2026-7607 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26761.
When was CVE-2026-7607 published?: CVE-2026-7607 was published on 2026-05-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:trendnet:tew-821dap_firmware:1.12b01:*:*:*:*:*:*:*

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