9.8

CVE-2019-11936: facebook hhvm

CVSS: 9.8v3.1CriticalModified
AliasesUBUNTU-CVE-2019-11936
Published 04-12-2019Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2019-11936 is a critical (CVSS 9.8) vulnerability in facebook hhvm. EPSS estimates a 1.48% chance of exploitation in the next 30 days, higher than 73.5% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
1.48%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 04-12-2019
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.48%

Chance of exploitation in the next 30 days

Percentile

74%

Versus all other CVEs

30-day change

0.00 pp

From 1.48% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.48%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Facebook1 product
  • hhvm4.28.2 | ≥ 4.28.0, < unspecified | 4.27.1 | ≥ 4.27.0, < unspecified | 4.26.1 | ≥ 4.26.0, < unspecified | 4.25.1 | ≥ 4.25.0, < unspecified | 4.24.1 | ≥ 4.24.0, < unspecified | 4.23.2 | ≥ 4.9.0, < unspecified | 4.8.6 | ≥ 4.0.0, < unspecified | 3.30.12 | ≥ unspecified, < 3.30.12 | < 3.30.12 | ≥ 4.0.0, ≤ 4.8.5 | ≥ 4.9.0, ≤ 4.23.1 | 4.24.0 | 4.25.0 | 4.26.0 | 4.27.0 | 4.28.0 | 4.28.1
Ubuntu1 product
  • hhvmAll versions (No fix recorded)

2 vendors · 2 products

References

5 links