Read the docs
TI-2019-02626 Aliases CVE-2019-3561GHSA-rhw4-xq2h-gwx6

Memory corruption in Meta HHVM

Priority MEDIUM 45CWE-119Published · 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
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

Insufficient boundary checks for the strrpos and strripos functions allow access to out-of-bounds memory. This affects all supported versions of HHVM (4.0.3, 3.30.4, and 3.27.7 and below).

Why it matters now

EPSS 0.01711 77th percentileScored 2026-11-07
Fix Fixed HHVM (Facebook): 3.27.8

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
MetaHHVM4.0.4; 4.0.0 and later; 3.30.5; 3.30.0 and later; 3.27.8; before 3.27.83.27.8Patch availableCNA
  • HHVM VendorMeta Affected 4.0.4; 4.0.0 and later; 3.30.5; 3.30.0 and later; 3.27.8; before 3.27.8 Fixed in 3.27.8 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*up to 3.27.7; 3.28.0 – 3.30.4; 4.0.0 – 4.0.3VulnerableMeta
  • cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:* Versions up to 3.27.7; 3.28.0 – 3.30.4; 4.0.0 – 4.0.3 Vulnerable ·Meta

Remediation

  • Fix · CNA HHVM (Facebook) Fixed in 3.27.8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-3561
  2. 2026-10-03 Alias added: GHSA-rhw4-xq2h-gwx6

References

Advisory 2

  • 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