CVE-2025-1734
🔶 mediumSummary
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.
CVSS Score
5.3
Medium
EPSS Score
0.4
Exploit Probability
Published Date
2025-03-30
First Seen: 2026-01-05
📊 Relative Risk Intelligence
This CVE is Lower Risk - more severe than 19.7% of all 329,456 vulnerabilities in our database.
#264,595
Below average severity
Severity Percentile
🎯 CISA SSVC Assessment Updated: Mar 31, 2025
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
NO
Requires human interaction
💥 Technical Impact
Partial
Limited system impact
🏆 Discovered By
Jakub Zelenka (reporter)
SSVC data provided by
CISA
Last Modified
2025-11-03
Source
NVD 🔗
CVSS Vector 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS Vector 4.0
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE IDs (Weakness Types)