CVE-2019-11043

CRITICALNVD 8.79.8
EchelonGraph scoreHIGH confidence

“▲” beside the score: it is higher than NVD's CVSS score.

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.7 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: CISA Known Exploited Vulnerabilities catalog, EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 4 sources updated this weekExploited in the wild

Also known asEUVD-2019-2751 (ENISA EUVD) · GHSA-6qjm-m8fp-j2mm (GitHub Security Advisories)Source: ENISA EUVD

9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV) — the reason this is sooner than the SSVC decision on this page at low or medium mission impact
CISA-KEV: ExploitedEPSS PROB: 99.8%CVSS: 8.7Exploit: Metasploit · Exploit-DB (verified) · other public PoCExposed services: Not assessed

A fix is available — apply it.

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 v3
8.7
EG Score
9.8CRITICALhigh confidence
EG Risk
84
EG Risk 84/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity98% × 45%
Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation100% × 40%
Fixed at 100% for a CISA KEV listing: EchelonGraph's rule.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Attend at medium and Act at high mission impact.
Exploitation active (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low, sooner than that at medium and as soon as possible at high mission impact.
EPSS PROB
99.8%
EPSS %ILE
99th
KEV
⚠ Exploited

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.

EG Severity
9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
99.8% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-01). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
CISA KEV and EG-KEV Tier 1 (exploited in the wild)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Attend at medium mission impactTrack at low, Attend at medium and Act at high mission impact.CISA BOD 26-04: 3 days & forensic triage if the affected system is publicly exposed; 14 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Attend at medium and Act at high mission impact.

A fix is available. Apply it within your standard update timelines at low, sooner than that at medium and as soon as possible at high mission impact.

Exploitation active (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days & forensic triage if the affected system is publicly exposed; 14 days if it is not.

The score's inputs: In CISA KEV yes (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

CISA required action“Apply updates per vendor instructions.”

Quoted verbatim from CISA's Known Exploited Vulnerabilities catalog. CISA directs it at US federal civilian executive branch agencies under Binding Operational Directive (BOD) 26-04, which replaced BOD 22-01 on 10 June 2026; it is not EchelonGraph's advice. CISA's notes: https://nvd.nist.gov/vuln/detail/CVE-2019-11043

Published

October 28, 2019

Last Modified

November 3, 2025

Advisory Details (8)

Auto-updated Oct 26, 2026
⚠️ Actively exploited (CISA KEV, CISA Vulnrichment). Patch available. Sources: redhat.
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2019:3735
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2019:3724
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2019:3300
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2019:3299
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 6.

https://access.redhat.com/errata/RHSA-2019:3287
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 7.

https://access.redhat.com/errata/RHSA-2019:3286
Web page

Full Disclosure: APPLE-SA-2020-1-28-2 macOS Catalina 10.15.3, Security Update 2020-001 Mojave, Security Update 2020-001 High Sierra

http://seclists.org/fulldisclosure/2020/Jan/40

Patch Availability(11)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulibphp5-embed (5.5.9+dfsg-1ubuntu4.29+esm6) @ trusty2026-11-01ubuntu
ubuntuphp7.0-zip (7.0.33-0ubuntu0.16.04.7) @ xenial2026-11-01ubuntu
redhatphp-0:5.4.16-46.1.el7_62020-07-07redhat
redhatphp:7.2-8000020191113103901.5d58a0462020-02-03redhat
redhatphp:7.2-8010020191030112723.dcfb48bd2019-11-06redhat
redhatphp:7.3-8010020191030161321.dcfb48bd2019-11-06redhat
redhatrh-php70-php-0:7.0.27-2.el72019-11-06redhat
redhatrh-php71-php-0:7.1.30-2.el72019-11-01redhat
redhatrh-php72-php-0:7.2.24-1.el72019-11-01redhat
redhatphp-0:5.3.3-50.el6_102019-10-31redhat
redhatphp-0:5.4.16-46.1.el7_72019-10-31redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(3 across 3 ecosystems)
Debian:10(1)
PackageVulnerable rangeFix by version rangeDependents
php7.37.3.10-1 ... 7.3.9-1~deb10u1 (6 versions)
  • every version up to 7.3.11-1~deb10u1: fixed in 7.3.11-1~deb10u1
—
Debian:8(1)
PackageVulnerable rangeFix by version rangeDependents
php55.6.11+dfsg-1 ... 5.6.9+dfsg-1 (52 versions)
  • every version up to 5.6.40+dfsg-0+deb8u7: fixed in 5.6.40+dfsg-0+deb8u7
—
Debian:9(1)
PackageVulnerable rangeFix by version rangeDependents
php7.07.0.19-1 ... 7.0.33-0+deb9u5 (21 versions)
  • every version up to 7.0.33-0+deb9u6: fixed in 7.0.33-0+deb9u6
—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(11)

Data Freshness Timeline

(refreshed 23× in last 7d / 170× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 1,622 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 1,522 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 21:04 UTCEG score recompute
  2. 2026-11-01 21:04 UTCVendor advisory
  3. 2026-11-01 21:04 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  4. 2026-10-31 20:45 UTCEG score recompute
  5. 2026-10-31 20:45 UTCVendor advisory
  6. 2026-10-31 20:44 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  7. 2026-10-30 20:25 UTCEG score recompute
  8. 2026-10-30 20:25 UTCVendor advisory
  9. 2026-10-30 20:25 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  10. 2026-10-30 16:28 UTCEPSS rescoreEPSS 99.8% · 99th percentile
  11. 2026-10-29 20:06 UTCEG score recompute
  12. 2026-10-29 20:06 UTCVendor advisory
  13. 2026-10-29 20:06 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  14. 2026-10-29 16:28 UTCEPSS rescoreEPSS 99.8% · 99th percentile
  15. 2026-10-28 19:46 UTCEG score recompute
  16. 2026-10-28 19:46 UTCVendor advisory
  17. 2026-10-28 19:46 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  18. 2026-10-27 19:27 UTCEG score recompute
  19. 2026-10-27 19:27 UTCVendor advisory
  20. 2026-10-27 19:27 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  21. 2026-10-26 19:08 UTCEG score recompute
  22. 2026-10-26 19:08 UTCVendor advisory
  23. 2026-10-26 19:08 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  24. 2026-10-25 18:46 UTCEG score recompute
  25. 2026-10-25 18:46 UTCVendor advisory
Show 75 more
  1. 2026-10-25 18:45 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  2. 2026-10-25 16:27 UTCEPSS rescoreEPSS 99.7% · 99th percentile
  3. 2026-10-24 18:26 UTCEG score recompute
  4. 2026-10-24 18:26 UTCVendor advisory
  5. 2026-10-24 18:26 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  6. 2026-10-23 18:06 UTCEG score recompute
  7. 2026-10-23 18:06 UTCVendor advisory
  8. 2026-10-23 18:06 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  9. 2026-10-22 17:47 UTCEG score recompute
  10. 2026-10-22 17:47 UTCVendor advisory
  11. 2026-10-22 17:47 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  12. 2026-10-21 17:25 UTCEG score recompute
  13. 2026-10-21 17:25 UTCVendor advisory
  14. 2026-10-21 17:25 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  15. 2026-10-21 16:27 UTCEPSS rescoreEPSS 99.7% · 99th percentile
  16. 2026-10-20 17:06 UTCEG score recompute
  17. 2026-10-20 17:06 UTCVendor advisory
  18. 2026-10-20 17:05 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  19. 2026-10-20 16:27 UTCEPSS rescoreEPSS 99.7% · 99th percentile
  20. 2026-10-19 16:46 UTCEG score recompute
  21. 2026-10-19 16:46 UTCVendor advisory
  22. 2026-10-19 16:46 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  23. 2026-10-19 16:27 UTCEPSS rescoreEPSS 99.7% · 99th percentile
  24. 2026-10-18 16:27 UTCVendor advisory
  25. 2026-10-18 16:27 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  26. 2026-10-18 09:28 UTCEG score recompute
  27. 2026-10-18 09:28 UTCVendor advisory
  28. 2026-10-18 09:28 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  29. 2026-10-17 09:09 UTCEG score recompute
  30. 2026-10-17 09:09 UTCVendor advisory
  31. 2026-10-17 09:09 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  32. 2026-10-16 08:50 UTCEG score recompute
  33. 2026-10-16 08:50 UTCVendor advisory
  34. 2026-10-16 08:50 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  35. 2026-10-15 08:30 UTCEG score recompute
  36. 2026-10-15 08:30 UTCVendor advisory
  37. 2026-10-15 08:30 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  38. 2026-10-14 08:10 UTCEG score recompute
  39. 2026-10-14 08:10 UTCVendor advisory
  40. 2026-10-14 08:09 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  41. 2026-10-13 16:27 UTCEPSS rescoreEPSS 99.7% · 99th percentile
  42. 2026-10-13 07:49 UTCVendor advisory
  43. 2026-10-13 07:49 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  44. 2026-10-12 20:04 UTCEG score recompute
  45. 2026-10-12 07:29 UTCVendor advisory
  46. 2026-10-12 07:28 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  47. 2026-10-12 03:02 UTCVendor advisory
  48. 2026-10-12 03:02 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  49. 2026-10-11 22:35 UTCEG score recompute
  50. 2026-10-11 22:35 UTCVendor advisory
  51. 2026-10-11 22:35 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  52. 2026-10-11 18:11 UTCEG score recompute
  53. 2026-10-11 18:11 UTCVendor advisory
  54. 2026-10-11 18:10 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  55. 2026-10-11 13:44 UTCEG score recompute
  56. 2026-10-11 13:44 UTCVendor advisory
  57. 2026-10-11 13:44 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  58. 2026-10-11 09:19 UTCVendor advisory
  59. 2026-10-11 09:19 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  60. 2026-10-11 04:52 UTCVendor advisory
  61. 2026-10-11 04:51 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  62. 2026-10-11 00:26 UTCVendor advisory
  63. 2026-10-11 00:26 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  64. 2026-10-10 20:00 UTCVendor advisory
  65. 2026-10-10 20:00 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  66. 2026-10-10 15:35 UTCVendor advisory
  67. 2026-10-10 15:34 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  68. 2026-10-10 11:08 UTCVendor advisory
  69. 2026-10-10 11:08 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  70. 2026-10-10 06:44 UTCVendor advisory
  71. 2026-10-10 06:44 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  72. 2026-10-10 02:19 UTCVendor advisory
  73. 2026-10-10 02:19 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8
  74. 2026-10-09 21:55 UTCVendor advisory
  75. 2026-10-09 21:55 UTCGHSA enrichmentGHSA-6qjm-m8fp-j2mm · GitHub severity HIGH · GitHub CVSS 9.8

Publicly available exploits

(14 references, 10 shown)

Public exploit code is referenced for this CVE (1 Metasploit module, 2 Exploit-DB entries, 9 GitHub PoCs), as are 1 Nuclei detection template, 1 GitHub checker repository. A detection template checks whether a system is affected; it is not necessarily exploit code. A GitHub repository named or described as a checker or scanner checks whether a system is affected; it is not necessarily exploit code. Defenders should treat patch urgency accordingly.

  • Exploit-DBEDB-48182✓ verified
    Published Mar 9, 2020

    PHP-FPM - Underflow Remote Code Execution (Metasploit)

    Open source ↗
  • Metasploitexploit/multi/http/php_fpm_rce✓ verified
    Published Mar 5, 2020

    PHP-FPM Underflow RCE

    Open source ↗
  • Nucleihttp/cves/2019/CVE-2019-11043.yaml
    Published Aug 25, 2026

    PHP-FPM Path Info Buffer Underflow - Remote Code Execution

    Open source ↗
  • GitHub PoCkriskhub/CVE-2019-11043
    Published May 5, 2020

    This repository provides a dockerized infrastructure and a python implementation of the CVE-2019-11043 exploit.

    Open source ↗
  • GitHub PoCk8gege/CVE-2019-11043
    Published Nov 11, 2019

    Ladon POC Moudle CVE-2019-11043 (PHP-FPM + Ngnix)

    Open source ↗
  • GitHub PoC0th3rs-Security-Team/CVE-2019-11043
    Published Nov 6, 2019

    CVE-2019-11043 PHP7.x RCE

    Open source ↗
  • GitHub checkerypereirareis/docker-CVE-2019-11043
    Published Oct 30, 2019

    Docker image and commands to check CVE-2019-11043 vulnerability on nginx/php-fpm applications.

    Open source ↗
  • GitHub PoChuowen/CVE-2019-11043
    Published Oct 29, 2019

    Python exp for CVE-2019-11043

    Open source ↗
  • Exploit-DBEDB-47553
    Published Oct 28, 2019

    PHP-FPM + Nginx - Remote Code Execution

    Open source ↗
  • GitHub PoCtheMiddleBlue/CVE-2019-11043
    Published Oct 28, 2019

    (PoC) Python version of CVE-2019-11043 exploit by neex

    Open source ↗

Frequently asked(6)

What is CVE-2019-11043?
CVE-2019-11043 is a critical-severity vulnerability; its CVE record was published on October 28, 2019. 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.
When was CVE-2019-11043 made public?
CVE-2019-11043 was made public on October 22, 2019: that is the date its CVE record's CNA, PHP Group, gives for when the vulnerability was made public. The CVE record itself was published on October 28, 2019. EchelonGraph's copy of the record carries a last-modified date of November 3, 2025; the record at its source may have been updated since.
Is CVE-2019-11043 actively exploited?
Yes. CISA added CVE-2019-11043 to the Known Exploited Vulnerabilities catalog on March 25, 2022, affecting PHP FastCGI Process Manager (FPM). KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate attention. A fix is available. Apply it.
What is the CVSS score of CVE-2019-11043?
CVE-2019-11043 has a CVSS v3 base score of 8.7 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.8 (CRITICAL).
Which products are affected by CVE-2019-11043?
CVE-2019-11043 affects PHP FastCGI Process Manager (FPM). The affected packages EchelonGraph has on record, with version ranges, are listed in the Affected Packages section of this page.
How do I remediate CVE-2019-11043?
A fix for CVE-2019-11043 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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