High severity7.5NVD Advisory· Published Nov 13, 2019· Updated Jun 16, 2026

CVE-2010-4657

Description

PHP5 before 5.4.4 allows passing invalid utf-8 strings via the xmlTextWriterWriteAttribute, which are then misparsed by libxml2. This results in memory leak into the resulting output.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

PHP/PHP2 versions
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:php:php:*:*:*:*:*:*:*:*range: >=5.0.0,<5.4.4
- (no CPE)range: <5.4.4
Debian/linux
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Server2 versions
cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
php5/php5v5
Range: before 5.4.4

Patches

Vulnerability mechanics

References

access.redhat.com/security/cve/cve-2010-4657nvdThird Party Advisory
bugs.launchpad.net/php/%2Bbug/655442nvdThird Party Advisory
bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party Advisory
security-tracker.debian.org/tracker/CVE-2010-4657nvdThird Party Advisory

News mentions

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cvss	0.488
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000