How severe is CVE-2025-6129?

CVE-2025-6129 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-2025-6129 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-6129?

CVE-2025-6129 affects Totolink Ex1200t Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-6129?

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-2025-6129 have an EU (EUVD) identifier?

Yes. CVE-2025-6129 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18419.

When was CVE-2025-6129 published?

CVE-2025-6129 was published on 2025-06-16 and last updated on 2026-06-17.

CVE-2025-6129

CVE-2025-6129 is a high-severity vulnerability in Totolink Ex1200t 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: 7.4
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-18419
Weakness: CWE-119
Affected product: Totolink Ex1200t Firmware
Published: 2025-06-16
Last modified: 2026-06-17

Description

A vulnerability classified as critical was found in TOTOLINK EX1200T 4.1.2cu.5232_B20210713. This vulnerability affects unknown code of the file /boafrm/formSaveConfig of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Frequently asked questions

What is CVE-2025-6129?: A vulnerability classified as critical was found in TOTOLINK EX1200T 4.1.2cu.5232_B20210713. This vulnerability affects unknown code of the file /boafrm/formSaveConfig of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
How severe is CVE-2025-6129?: CVE-2025-6129 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-2025-6129 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-6129?: CVE-2025-6129 affects Totolink Ex1200t Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-6129?: 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-2025-6129 have an EU (EUVD) identifier?: Yes. CVE-2025-6129 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18419.
When was CVE-2025-6129 published?: CVE-2025-6129 was published on 2025-06-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:totolink:ex1200t_firmware:4.1.2cu.5232_b20210713:*:*:*:*:*:*:*

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