CVE-2025-1734: Netapp Ontap

Medium severity, CVSS 5.3. EPSS: 0.5% chance of exploitation in the next 30 days.

In PHP from 8.1.* before 8.1.32, from 8.2.* before 8.2.28, from 8.3.* before 8.3.19, from 8.4.* before 8.4.5, when receiving headers from HTTP server, the headers missing a colon (:) are treated as valid headers even though they are not. This may confuse applications into accepting invalid headers.

Affected products

• Netapp Ontap: version 9 only
• PHP PHP: from 8.1.0, before 8.1.32 (fixed in 8.1.32); from 8.2.0, before 8.2.28 (fixed in 8.2.28); from 8.3.0, before 8.3.19 (fixed in 8.3.19); from 8.4.0, before 8.4.5 (fixed in 8.4.5)

Published 2025-03-30. Last modified 2026-06-17.