CVE-2025-1734

EUVD-2025-9429
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 59%
Affected Products (NVD)
VendorProductVersion
phpphp
8.1.0 ≤
𝑥
< 8.1.32
phpphp
8.2.0 ≤
𝑥
< 8.2.28
phpphp
8.3.0 ≤
𝑥
< 8.3.19
phpphp
8.4.0 ≤
𝑥
< 8.4.5
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
php7.4
bullseye
vulnerable
bullseye (security)
7.4.33-1+deb11u10
fixed
php8.2
bookworm
8.2.29-1~deb12u1
fixed
bookworm (security)
8.2.30-1~deb12u1
fixed
php8.4
forky
8.4.16-1
fixed
sid
8.4.16-1
fixed
trixie
8.4.11-1
fixed
trixie (security)
8.4.16-1~deb13u1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
php5
focal
dne
jammy
dne
noble
dne
oracular
dne
plucky
dne
questing
dne
trusty
needs-triage
php7.0
focal
dne
jammy
dne
noble
dne
oracular
dne
plucky
dne
questing
dne
xenial
Fixed 7.0.33-0ubuntu0.16.04.16+esm15
released
php7.2
bionic
Fixed 7.2.24-0ubuntu0.18.04.17+esm8
released
focal
dne
jammy
dne
noble
dne
oracular
dne
plucky
dne
questing
dne
php7.4
focal
Fixed 7.4.3-4ubuntu2.29
released
jammy
dne
noble
dne
oracular
dne
plucky
dne
questing
dne
php8.1
focal
dne
jammy
Fixed 8.1.2-1ubuntu2.21
released
noble
dne
oracular
dne
plucky
dne
questing
dne
php8.3
focal
dne
jammy
dne
noble
Fixed 8.3.6-0ubuntu0.24.04.4
released
oracular
Fixed 8.3.11-0ubuntu0.24.10.5
released
plucky
dne
questing
dne
php8.4
focal
dne
jammy
dne
noble
dne
oracular
dne
plucky
Fixed 8.4.5-1
released
questing
Fixed 8.4.5-1
released