Microsoft security update for CVE-2025-1734
🔗 CVE IDs covered (1)
📋 Microsoft's advisory
EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-1734. This page also shows what EchelonGraph holds for CVE-2025-1734, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.
🎯 Affected products5
- azl3 php 8.3.14-1 on Azure Linux 3.0
- azl3 php 8.3.19-1 on Azure Linux 3.0
- cbl2 php 8.1.31-1 on CBL Mariner 2.0
- cbl2 php 8.1.31-1 on CBL-Mariner 2.0
- cbl2 php 8.1.32-1 on CBL Mariner 2.0
✅ Updates Microsoft lists: 2 updates
2 rows: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.
| KB article | Update | Fixed build |
|---|---|---|
| — | Security Update | 8.1.32-1 |
| — | Security Update | 8.3.19-1 |
🧭 EchelonGraph on CVE-2025-1734
- EchelonGraph score
- 5.3 MEDIUM
- CISA KEV
- Not listed
- Fix status
- A fix is available — apply it.
Description from the CVE record (CVE.org), as published by its numbering authority
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.
Published by PHP Group, the CVE Numbering Authority that assigned CVE-2025-1734, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).