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CVE-2014-6228

24
FAUCET Score

CVE-2014-6228 describes an integer overflow vulnerability in the string_chunk_split function within Facebook HipHop Virtual Machine (HHVM) versions prior to 3.3.0. This flaw can be triggered remotely by crafting specific arguments to the chunk_split function, leading to a denial of service (application crash) and potentially other unspecified impacts. With a CVSS score of 7.5 (High), it presents a low-complexity attack vector that does not require authentication, allowing for partial confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

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

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.93%
Probability of exploitation in next 30 days
EPSS Percentile
77.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0193 is in the 61st percentile among its peer group of 51,485 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / facebook/hhvm/commit/1f91e076a585118495b976a413c1df40f6fd3d41