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CVE-2026-119723 facebook hhvm

no score yetEPSS 0.3%

facebook hhvm: no CVSS score yet. EPSS 0.3% estimated probability of exploitation activity in the next 30 days.

When parsing request variables such as query-string and form parameters, HHVM did not check that appending a nested array succeeded before descending into it. A remote, unauthenticated attacker could send a GET or POST request which would crash the HHVM server process before any application code runs, leading to denial of service. This issue affected HHVM prior to 23c061f4e804a51badd5f85227e65185651253b5.
EPSS
0.3% estimated probability of exploitation activity in the next 30 days; 21st percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
Published
Modified
Assigned by
Meta (CNA)
NVD analysis
Awaiting analysis
Record from
the NVD, synced

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References

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