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High severity7.5NVD Advisory· Published Mar 3, 2020· Updated Jun 17, 2026

CVE-2020-1893

CVE-2020-1893

Description

Insufficient boundary checks when decoding JSON in TryParse reads out of bounds memory, potentially leading to DOS. This issue affects HHVM 4.45.0, 4.44.0, 4.43.0, 4.42.0, 4.41.0, 4.40.0, 4.39.0, versions between 4.33.0 and 4.38.0 (inclusive), versions between 4.9.0 and 4.32.0 (inclusive), and versions prior to 4.8.7.

AI Insight

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

Affected products

10
  • Facebook/Hhvm9 versions
    cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*+ 8 more
    • cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*range: <4.8.7
    • cpe:2.3:a:facebook:hhvm:4.39.0:*:*:*:*:*:*:*
    • cpe:2.3:a:facebook:hhvm:4.40.0:*:*:*:*:*:*:*
    • cpe:2.3:a:facebook:hhvm:4.41.0:*:*:*:*:*:*:*
    • cpe:2.3:a:facebook:hhvm:4.42.0:*:*:*:*:*:*:*
    • cpe:2.3:a:facebook:hhvm:4.43.0:*:*:*:*:*:*:*
    • cpe:2.3:a:facebook:hhvm:4.44.0:*:*:*:*:*:*:*
    • cpe:2.3:a:facebook:hhvm:4.45.0:*:*:*:*:*:*:*
    • (no CPE)range: 4.45.1
  • HHVM/HHVMllm-fuzzy
    Range: 4.45.0, 4.44.0, 4.43.0, 4.42.0, 4.41.0, 4.40.0, 4.39.0, 4.33.0-4.38.0, 4.9.0-4.32.0, <4.8.7

Patches

Vulnerability mechanics

References

2

News mentions

0

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