What is CVE-2019-11936?

CVE-2019-11936 is a critical-severity vulnerability in Facebook Hhvm, classified under CWE-626. CVSS score: 9.8/10. Published 2019-12-04.

How severe is CVE-2019-11936?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Facebook Hhvm

CVE-2019-11936

Various APC functions accept keys containing null bytes as input, leading to premature truncation of input. This issue affects HHVM versions prior to 3.30.12, all versions between 4.0.0 and 4.8.5, all versions between 4.9.0 and 4.23.1, as…

EPSS: 0.015 (71.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Facebook Hhvm — versions unspecified, 4.24.0, 4.28.2

Weakness classification (CWE)

CWE-626

References

cve-assign@fb.com (x_refsource_CONFIRM, Vendor Advisory)
cve-assign@fb.com (x_refsource_CONFIRM, Patch, Third Party Advisory)
cve-assign@fb.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2019-11936?: CVE-2019-11936 is a critical-severity vulnerability in Facebook Hhvm, classified under CWE-626. CVSS score: 9.8/10. Published 2019-12-04.
How severe is CVE-2019-11936?: Critical severity. CVSS v3 base score is 9.8 out of 10.