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CVE-2014-6229

19
FAUCET Score

CVE-2014-6229 affects Facebook HipHop Virtual Machine (HHVM) before version 3.3.0, specifically within the HashContext class. The vulnerability stems from an incorrect expectation that key strings are null-terminated, leading to out-of-bounds read access and potential truncation of strings containing internal null characters. This issue has a CVSS score of 5.0 (medium severity), indicating it can be exploited remotely with low complexity, potentially leading to information disclosure (C:P) but not impacting integrity or availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.2.0CPE matchmatch criteria
cpe:2.3:a:facebook:hiphop_virtual_machine:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:P/I:N/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.68%
Probability of exploitation in next 30 days
EPSS Percentile
74.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0168 is in the 60th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

hhvm.com / blog/6239/hhvm-3-3-0
Vendor Advisory
github.com / facebook/hhvm/commit/7135ec229882370a00411aa50030eada6034cc1b