How severe is CVE-2024-13974?

CVE-2024-13974 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-13974 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-13974?

CVE-2024-13974 affects Sophos Firewall Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-13974?

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-2024-13974 have an EU (EUVD) identifier?

Yes. CVE-2024-13974 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54805.

When was CVE-2024-13974 published?

CVE-2024-13974 was published on 2025-07-21 and last updated on 2026-06-17.

CVE-2024-13974

CVE-2024-13974 is a high-severity vulnerability in Sophos Firewall Firmware with a CVSS 3.x base score of 8.1. 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-807.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 7% (93rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-54805
Weakness: CWE-807
Affected product: Sophos Firewall Firmware
Published: 2025-07-21
Last modified: 2026-06-17

Description

A business logic vulnerability in the Up2Date component of Sophos Firewall older than version 21.0 MR1 (20.0.1) can lead to attackers controlling the firewall’s DNS environment to achieve remote code execution.

Frequently asked questions

What is CVE-2024-13974?: A business logic vulnerability in the Up2Date component of Sophos Firewall older than version 21.0 MR1 (20.0.1) can lead to attackers controlling the firewall’s DNS environment to achieve remote code execution.
How severe is CVE-2024-13974?: CVE-2024-13974 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-13974 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-13974?: CVE-2024-13974 affects Sophos Firewall Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-13974?: 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-2024-13974 have an EU (EUVD) identifier?: Yes. CVE-2024-13974 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54805.
When was CVE-2024-13974 published?: CVE-2024-13974 was published on 2025-07-21 and last updated on 2026-06-17.

References

https://www.sophos.com/en-us/security-advisories/sophos-sa-20250721-sfos-rce

Affected products (1)

cpe:2.3:o:sophos:firewall_firmware:*:*:*:*:*:*:*:*

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