Critical severity9.8NVD Advisory· Published Feb 17, 2017· Updated Jun 17, 2026

CVE-2016-6871

Description

Integer overflow in bcmath in Facebook HHVM before 3.15.0 allows attackers to have unspecified impact via unknown vectors, which triggers a buffer overflow.

AI Insight

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

Affected products

Facebook/Hhvm2 versions
cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*range: <=3.14.5
- (no CPE)range: <3.15.0

Patches

Vulnerability mechanics

References

www.openwall.com/lists/oss-security/2016/08/11/1nvdMailing ListPatchThird Party Advisory
www.openwall.com/lists/oss-security/2016/08/19/1nvdMailing ListPatchThird Party Advisory
github.com/facebook/hhvm/commit/c00fc9d3003eb06226b58b6a48555f1456ee2475nvdPatch

News mentions

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cvss	0.637
epss	0.002
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000