Is CVE-2025-4270 in the CISA KEV catalog?

No. CVE-2025-4270 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-4270?

CVE-2025-4270 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2025-4270?

CVE-2025-4270 has an EPSS score of 10.27% (95th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2025-4270?

No published fix for CVE-2025-4270 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2025-4270

MEDIUMEPSS 95th pctl

5.3

CVSS v3

NVD

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.

CWE-200Information Exposure CWE-284Improper Access Control

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploit Intelligence

10.27%probability of exploitation in 30 days

95thpercentile

Very high risk: more likely to be exploited than 95% of all known CVEs.

References

Exploit2

Third-Party Advisory2

VDB Entry1

vuldb.com

Product1

totolink.net

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-05-07.