CVE-2019-11935
CRITICAL
9.8
CVSS Score
Published: December 4, 2019 at 04:25 PM UTC
Updated: June 17, 2026 at 02:13 AM UTC
1 product affected across 1 vendorHHVM
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Severity
CRITICAL9.8
Exploit prediction
EPSS 1%
Description
Insufficient boundary checks when processing a string in mb_ereg_replace allows access to out-of-bounds memory. 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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v ≥ 4.0.0v ≥ 4.24.0v ≥ 4.25.0v ≥ 4.26.0v ≥ 4.27.0v ≥ 4.28.0v ≥ 4.9.0v < 3.30.124.0.0 ≤ v ≤ 4.8.54.9.0 ≤ v ≤ 4.23.13.30.124.0.04.23.24.24.04.24.14.25.04.25.14.26.04.26.14.27.04.27.14.28.04.28.14.28.24.8.64.9.0
Affected range stops below 3.30.12, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (3)
x_refsource_CONFIRMPatchThird Party Advisory
Source: [email protected]
https://github.com/facebook/hhvm/commit/1c518555dba6ceb45d5ba61845b96e261219c3b7x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://hhvm.com/blog/2019/10/28/security-update.htmlx_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://www.facebook.com/security/advisories/cve-2019-11935CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-125CWE-120
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