The mcrypt_create_iv function in hphp/runtime/ext/mcrypt/ext_mcrypt.cpp in Facebook…
Priority LOW 26CWE-310Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
The mcrypt_create_iv function in hphp/runtime/ext/mcrypt/ext_mcrypt.cpp in Facebook HipHop Virtual Machine (HHVM) before 3.3.0 does not seed the random number generator, which makes it easier for remote attackers to defeat cryptographic protection mechanisms by leveraging the use of a single initialization vector.
Why it matters now
EPSS 0.01516 74th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2014-5386
- 2026-10-03 Alias added: GHSA-rrcg-p2f6-8mv2
More Meta Hiphop Virtual Machine vulnerabilities
- TI-2019-02635 Heap-based buffer overflow in Meta HHVM CVSS 3.1CRITICAL 9.8
- TI-2014-01747 CRLF injection vulnerability in the LightProcess protocol implementation in… CVSS 2.0HIGH 7.5
- TI-2014-05126 Integer overflow in the string_chunk_split function in hphp/runtime/base/zend-string.cpp… CVSS 2.0HIGH 7.5
- TI-2014-01748 Facebook HipHop Virtual Machine (HHVM) before 3.1.0 does not drop supplemental group… CVSS 2.0MEDIUM 5.0
- TI-2014-05127 The HashContext class in hphp/runtime/ext/ext_hash.cpp in Facebook HipHop Virtual Machine… CVSS 2.0MEDIUM 5.0
- TI-2014-07899 Cross-site scripting (XSS) vulnerability in the WddxPacket::recursiveAddVar function in… CVSS 2.0MEDIUM 4.3
Sources
- CVE-2014-5386 · CVE Program
- CVE-2014-5386 · NVD
- FIRST EPSS
- GHSA-rrcg-p2f6-8mv2 · GitHub Advisory Database · CC BY 4.0
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