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CVE-2025-14177

Information Leak of Memory in getimagesize

Published: Dec 27, 2025Updated: Jan 8, 2026 Sources: CVE List NVD BDUCWE-125
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.5%
Top 62.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

In PHP versions:8.1.* before 8.1.34, 8.2.* before 8.2.30, 8.3.* before 8.3.29, 8.4.* before 8.4.16, 8.5.* before 8.5.1, the getimagesize() function may leak uninitialized heap memory into the APPn segments (e.g., APP1) when reading images in multi-chunk mode (such as via php://filter). This occurs due to a bug in php_read_stream_all_chunks() that overwrites the buffer without advancing the pointer, leaving tail bytes uninitialized. This may lead to information disclosure of sensitive heap data and affect the confidentiality of the target server.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-125

Affected Products

Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
PHPPHP GroupOSS Libraries
phpphp
Dev Tool
OSS Libraries / generic-library
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
ооо «ред софт»commercialRUOperating Systemsaka red soft
php grouposs-projectOSS Librariesaka php, pear
phposs-projectUSOSS Librariesaka php language, pecl, pear

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://github.com/php/php-src/commit/c5f28c7cf0a052f48e47877c7aa5c5bcc54f1cfc
github.com
https://github.com/php/php-src/issues/20584
github.com
https://github.com/php/php-src/security/advisories/GHSA-3237-qqm7-mfv7
github.com
and 4 more references View all →

Timeline

Published
Dec 27, 2025
Last Updated
Jan 8, 2026

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