CVE-2025-48839: An Out-of-bounds Write vulnerability [CWE-787] in FortiADC 8.0.0, 7.6.0 through 7.6.2, 7.4.0 through 7.4.7, 7.2 all…
CVE-2025-48839 · Severity: medium · CVSS 6.6 · Published 2025-11-18
An Out-of-bounds Write vulnerability [CWE-787] in FortiADC 8.0.0, 7.6.0 through 7.6.2, 7.4.0 through 7.4.7, 7.2 all versions, 7.1 all versions, 7.0 all versions, 6.2 all versions may allow an authenticated attacker to execute arbitrary code via specially crafted HTTP requests.
No. Junglewise Threat Intelligence has no report of CVE-2025-48839 being exploited in the wild.
How severe is CVE-2025-48839?
Medium severity, with a CVSS score of 6.6, published 18 November 2025.
Which products and versions are affected?
Fortinet FortiADC. The advisory does not name versions.
Is there a fix for CVE-2025-48839?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-48839?
Check whether you run Fortinet FortiADC. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.