Medium severity6.5NVD Advisory· Published Sep 22, 2016· Updated Jun 17, 2026

CVE-2016-5271

Description

The PropertyProvider::GetSpacingInternal function in Mozilla Firefox before 49.0 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via text runs in conjunction with a "display: contents" Cascading Style Sheets (CSS) property.

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

Affected products

Mozilla Corporation/Firefoxllm-fuzzy
Range: <49.0
osv-coords2 versions
pkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweed pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweed
< 128.5.1-1.1+ 1 more
- (no CPE)range: < 128.5.1-1.1
- (no CPE)range: < 50.1.0-1.1

Patches

Vulnerability mechanics

References

www.mozilla.org/security/announce/2016/mfsa2016-85.htmlnvdVendor Advisory
bugzilla.mozilla.org/show_bug.cginvdIssue Tracking
www.securityfocus.com/bid/93052nvd
www.securitytracker.com/id/1036852nvd
security.gentoo.org/glsa/201701-15nvd

News mentions

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cvss	0.423
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000