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CVE-2019-11043

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 exec…

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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.
CVSS 8.7 (HIGH) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
2.4/10
REALITY · THREAT PRIORITY
8.8/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 8.7: +1.30
  • Fresh EPSS: 99.78%: +0.50

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 8 documents and public datasets.

Hype components

Headline sample (25%)
70/100
Press, 30 days (60%)
10/100
Grounded branding (15%)
0/100
HYPE TOTAL24/100

Sources and documents

Acronis
Press · 22 Oct 2026, 07:00 · Critical php2shell vulnerabilities: What you need to know - Acronis
Tenable Blog
Press · 21 Oct 2026, 09:01 · php2shell (CVE-2026-109618, CVE-2026-109619): Frequently asked questions about critical PHP remote code execution vulnerabilities
The Hacker News
Press · 23 Jun 2022, 07:00 · Critical PHP Vulnerability Exposes QNAP NAS Devices to Remote Attacks - The Hacker News
Petri IT Knowledgebase
Press · 23 Jun 2022, 07:00 · QNAP Releases Fix for PHP Security Flaw Affecting NAS Devices - Petri IT Knowledgebase
BleepingComputer
Press · 22 Jun 2022, 07:00 · Critical PHP flaw exposes QNAP NAS devices to RCE attacks - BleepingComputer
See all 8 source documents
Security Affairs
Press · 18 Nov 2019, 08:00 · New NextCry Ransomware targets Nextcloud instances on Linux servers - Security Affairs
Qualys
Press · 30 Oct 2019, 07:00 · PHP Remote Code Execution Vulnerability (CVE-2019-11043) - Qualys
The Hacker News
Press · 26 Oct 2019, 07:00 · New PHP Flaw Could Let Attackers Hack Sites Running On Nginx Servers - The Hacker News

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 2.4 · reality 8.8 (2026-11-02 15:12). The curve appears once the score changes.

Public exploit evidence

5

Public exploit entries / repo candidates

See 5 repos with metrics
RepositoryStarsForksLanguageUpdated
theMiddleBlue/CVE-2019-1104314745Python29 Oct 2019, 15:47
k8gege/CVE-2019-110431613Python11 Nov 2019, 11:59
AleWong/PHP-FPM-Remote-Code-Execution-Vulnerability-CVE-2019-11043-44Python06 Jul 2020, 02:47
HxDDD/CVE-PoC30—20 Apr 2022, 00:23
gon905332-jpg/cve-2019-11043.py00Python12 Dec 2025, 23:12
Public exploit evidence
Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence
Exploitation recorded
Priority basis
Recorded exploitation; CVSS 8.7; EPSS 99.8%
Attention, last 30 days
2 distinct story titles; 2 press documents; 2 publisher domains.
Technical potential
network access, no prior privileges, no user interaction, additional attack conditions.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:58:03.858787+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
First press mention
26 Oct 2019, 07:00
Published
28 Oct 2019, 14:19
Added to the CISA KEV catalog
25 Mar 2022, 00:00
Latest press mention
22 Oct 2026, 07:00
Score calculated
05 Nov 2026, 13:58
PoCs on GitHub
5 repositories