How severe is CVE-2025-4270?

CVE-2025-4270 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2025-4270 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-4270?

CVE-2025-4270 affects Totolink A720r Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-4270?

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

Does CVE-2025-4270 have an EU (EUVD) identifier?

Yes. CVE-2025-4270 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14980.

When was CVE-2025-4270 published?

CVE-2025-4270 was published on 2025-05-05 and last updated on 2026-06-17.

CVE-2025-4270

CVE-2025-4270 is a medium-severity vulnerability in Totolink A720r Firmware with a CVSS 3.x base score of 5.3. Its EPSS exploit-prediction score of 10% places it in the 95th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-200.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
CVSS v4: 6.9
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-14980
Weakness: CWE-200
Affected product: Totolink A720r Firmware
Published: 2025-05-05
Last modified: 2026-06-17

Description

A vulnerability was found in TOTOLINK A720R 4.1.5cu.374. It has been classified as problematic. Affected is an unknown function of the file /cgi-bin/cstecgi.cgi of the component Config Handler. The manipulation of the argument topicurl with the input getInitCfg/getSysStatusCfg leads to information disclosure. 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-2025-4270?: A vulnerability was found in TOTOLINK A720R 4.1.5cu.374. It has been classified as problematic. Affected is an unknown function of the file /cgi-bin/cstecgi.cgi of the component Config Handler. The manipulation of the argument topicurl with the input getInitCfg/getSysStatusCfg leads to information disclosure. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
How severe is CVE-2025-4270?: CVE-2025-4270 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2025-4270 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-4270?: CVE-2025-4270 affects Totolink A720r Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-4270?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-4270 have an EU (EUVD) identifier?: Yes. CVE-2025-4270 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14980.
When was CVE-2025-4270 published?: CVE-2025-4270 was published on 2025-05-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:totolink:a720r_firmware:4.1.5cu.374:*:*:*:*:*:*:*

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