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Public proof of concept

CVE-2019-5096

A public proof of concept exists; no exploitation attested.

  • Published2019-12-03
  • WeaknessCWE-416

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An exploitable code execution vulnerability exists in the processing of multi-part/form-data requests within the base GoAhead web server application in versions v5.0.1, v.4.1.1 and v3.6.5. A specially crafted HTTP request can lead to a use-after-free condition during the processing of this request that can be used to corrupt heap structures that could lead to full code execution. The request can be unauthenticated in the form of GET or POST requests, and does not require the requested resource to exist on the server.

Timeline

dates in UTC
  1. 2019-12-0322:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-04 09:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-5096?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-5096?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Embedthis goahead
BranchAffectedFixed in
3.6= 3.6.5no fix published
4.1= 4.1.1no fix published
5.0= 5.0.1no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • ICSA-23-026-06 CISA28 known affected

    Rockwell Automation products using GoAhead Web Server

    Products using GoAhead Web Server: 1732E-8CFGM8R/A: firmware version 1.012 · Products using GoAhead Web Server: 1732E-IF4M12R/A (discontinued): firmware version 1.012 · Products using GoAhead Web Server: 1732E-IR4IM12R/A: firmware version 1.012 · +25 more

Full record on NVD

Fix

  1. Mitigation from the vendor CISA ICSA-23-026-06 · 28 products1769-AENTR: Update to 1.003 or later
  2. Mitigation from the vendor CISA ICSA-23-026-06 · 28 products5069-AEN2TR (discontinued): Migrate to the 5069-AENTR.
  3. Mitigation from the vendor CISA ICSA-23-026-06 · 28 products1756-EN2T/D: Update to 11.002 or later
  4. Mitigation from the vendor CISA ICSA-23-026-06 · 28 products1756-EN2TR/C: Update to 11.002 or later
  5. Mitigation from the vendor CISA ICSA-23-026-06 · 28 products1756-EN2F/C: Update to 11.002 or later
  6. Mitigation from the vendor CISA ICSA-23-026-06 · 28 products1756-EN2TP/A: Update to 11.002 or later

Detection

read 2026-11-03 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
1 repository, unverifiedianxtianxt/CVE-2019-5096-GoAhead-Web-Server-Dos-Exploit
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVSS 3.19.8read 2026-10-23
  • CNACVSS 3.09.8known since 2026-10-23
  • NVDCVSS 2.07.5read 2026-10-23
  • CNAweakness (CWE)CWE-416known since 2026-10-23
  • NVDweakness (CWE)CWE-416read 2026-10-23
  • FIRST EPSSEPSS score67.0 %read 2026-11-03
  • PoC-in-GitHubproof of concept1read 2026-11-03

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2019-12-03
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2019-5096?

An exploitable code execution vulnerability exists in the processing of multi-part/form-data requests within the base GoAhead web server application in versions v5.0.1, v.4.1.1 and v3.6.5. A specially crafted HTTP request can lead to a use-after-free condition during the processing of this request that can be used to corrupt heap structures that could lead to full code execution. The request can be unauthenticated in the form of GET or POST requests, and does not require the requested resource to exist on the server.

Is CVE-2019-5096 actively exploited?

Active exploitation of CVE-2019-5096 has not been confirmed. Its EPSS score was 67.0% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-5096?

CVE-2019-5096 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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