How severe is CVE-2020-24373?

CVE-2020-24373 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-24373 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-24373?

CVE-2020-24373 primarily affects Free Freebox Revolution Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-24373?

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.

When was CVE-2020-24373 published?

CVE-2020-24373 was published on 2020-09-16 and last updated on 2026-06-17.

CVE-2020-24373

CVE-2020-24373 is a high-severity vulnerability in Free Freebox Revolution 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-352.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Free Freebox Revolution Firmware
Published: 2020-09-16
Last modified: 2026-06-17

Description

A CSRF vulnerability in the UPnP MediaServer implementation in Freebox Server before 4.2.3.

Frequently asked questions

What is CVE-2020-24373?: A CSRF vulnerability in the UPnP MediaServer implementation in Freebox Server before 4.2.3.
How severe is CVE-2020-24373?: CVE-2020-24373 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-24373 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-24373?: CVE-2020-24373 primarily affects Free Freebox Revolution Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-24373?: 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.
When was CVE-2020-24373 published?: CVE-2020-24373 was published on 2020-09-16 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:o:free:freebox_revolution_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:free:freebox_mini_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:free:freebox_one_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:free:freebox_delta_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:free:freebox_pop_firmware:*:*:*:*:*:*:*:*

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