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TI-2016-05897 Aliases CVE-2016-6870GHSA-392p-w329-wxhf

Out-of-bounds write in the (1) mb_detect_encoding, (2) mb_send_mail, and (3)…

Priority MEDIUM 46CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

Out-of-bounds write in the (1) mb_detect_encoding, (2) mb_send_mail, and (3) mb_detect_order functions in Facebook HHVM before 3.15.0 allows attackers to have unspecified impact via unknown vectors.

Why it matters now

EPSS 0.02212 82nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*up to 3.14.5VulnerableMeta
  • cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:* Versions up to 3.14.5 Vulnerable ·Meta

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-6870
  2. 2026-10-03 Alias added: GHSA-392p-w329-wxhf

References

Patch 3

  • TI-2018-04659 Improper input validation in Meta HHVM CVSS 3.1CRITICAL 9.8
  • TI-2022-17147 Broken or risky cryptographic algorithm in Meta HHVM CVSS 3.1CRITICAL 9.8
  • TI-2019-08934 Memory corruption in Meta HHVM CVSS 3.1CRITICAL 9.8
  • TI-2021-06352 Heap-based buffer overflow in Meta folly CVSS 3.1CRITICAL 9.8
  • TI-2019-08935 An invalid free in mb_detect_order can cause the application to crash or potentially… CVSS 3.1CRITICAL 9.8
  • TI-2016-05898 Integer overflow in bcmath in Facebook HHVM before 3.15.0 allows attackers to have… CVSS 3.0CRITICAL 9.8
See all 39 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences