CVE-2024-13974

Firewall Firmware vulnerability

CVSS

8.1

EPSS

6.7%

EPSS pct

93th

Exploited

No known

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.

Affected vendor

Sophos

Affected product

Firewall Firmware

CVSS vector

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

Weakness type (CWE)

CWE-807

Published

2025-07-21

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, high attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 6.7% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 93% of all scored CVEs.

Check your external exposure to CVE-2024-13974

Confirm whether Sophos Firewall Firmware is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2024-13974.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2024-13974

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2024-13974 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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