Home/CVE/PHP FastCGI Process Manager (FPM) Buffer Overflow Vulnerability
CVE

CVE-2019-11043

PHP FastCGI Process Manager (FPM) Buffer Overflow Vulnerability

In PHP versions 7.1.x below 7.1.33, 7.2.x below 7.2.24 and 7.3.x below 7.3.11 in certain configurations of FPM setup it is possible to cause FPM module to write past allocated buffers into the space reserved for FCGI protocol data, thus opening the possibility of remote code execution.

HIGH · CVSS 8.7 ⚠ CISA KEV EPSS 0.94053 Ransomware: known
Act now
  • Listed on CISA KEV (known exploited in the wild)
  • Linked to known ransomware campaigns
  • SSVC exploitation status: active
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 0% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0

Required Remediation

Apply updates per vendor instructions.

Detection Rules (IDS/IPS)

1
Open rulesets (ET Open, Snort Community, abuse.ch) link to source. Commercial rulesets are reference-only.

Scoring & Timeline

8.7
HIGH · CVSS v3.1 · security@php.net
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD28 Oct 2019 · 03:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
SSVC triage · cisa-vulnrichment
Exploitation
active
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.

Vendor Advisories

22
suse-csafopenSUSE-SU-2024:11167-1
suse-csafopenSUSE-SU-2024:11169-1
suse-csafSUSE-SU-2022:4067-1
suse-csafSUSE-SU-2020:0522-1
🔗

References & Sources

17
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://seclists.org/fulldisclosure/2020/Jan/40Mailing ListThird Party Advisory
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