Is CVE-2019-11936 in the CISA KEV catalog?

No. CVE-2019-11936 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-11936?

CVE-2019-11936 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2019-11936?

CVE-2019-11936 has an EPSS score of 1.48% (71th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2019-11936?

No published fix for CVE-2019-11936 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2019-11936

CRITICALEPSS 71th pctl

9.8

CVSS v3

NVD

Description

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 well as 4.24.0, 4.25.0, 4.26.0, 4.27.0, 4.28.0, and 4.28.1.

CWE-626

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

1.48%probability of exploitation in 30 days

71stpercentile

Elevated risk: more likely to be exploited than 71% of all known CVEs.

References

Patch1

github.com

Vendor Advisory2

Related Vulnerabilities

Other CWE-626 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-17137	Critical	9.4	2.7%	-	-
CVE-2026-42010	Medium	7.1	1.1%	-	Fix
CVE-2026-42579	High	7.5	1.0%	-	Fix
CVE-2020-10773	Medium	4.4	0.4%	-	Fix
CVE-2026-42040	Low	3.7	0.2%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.