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Fact · exploitation · confirmed

The last PHP core RCE, CVE-2024-4577, was exploited in the wild one day after disclosure and in KEV three days after; php2shell is not in KEV after one day

Who says it: CISA KEV catalog; Akamai (2024) · Sources: CISA CVE record Akamai Security Research

Counted from the captured catalog.

Fact-check

A2 Reported status overstated · Record · verdict: holds in part · the status word overstates the evidence

The KEV JSON (dateAdded 2024-06-12) and the CVE record (datePublished 2024-06-09T19:42Z) give three days (A6), and the php2shell KEV absence is A6 at 08:16Z on 22 Oct. 'Exploited in the wild one day after' rests on Akamai alone (A2), and it describes honeypot exploit attempts; 'the last PHP core RCE' is not shown (CVE-2024-4577 is a PHP-CGI argument injection on Windows).

Capture checkedResultWhat it sayssha256 of the text read
cisa-kev-jsoncarriesnothing that carries itef8fffede5c47200
cve-cve-2024-4577carriesnothing that carries ite8cc1b1dcd1a3333
akamai-blog-cve-2024-4577-one-daycarriesAs early as one day after disclosure, the SIRT observed numerous exploit attempts to abuse this vulnerabilityf7a58be0ecaaa8db
akamai-blog-cve-2024-4577-one-daypartialwe observed exploit attempts targeting this PHP flaw on our honeypot network within 24 hours of its disclosure.f7a58be0ecaaa8db

Open tickets: Evidence-1, Finding-20, Finding-21, Finding-76.

Graded in Run-1, resting on captures up to 2026-10-22 11:25 UTC. The scale is on the fact-check page.

This fact over time

  1. 2024Akamai Security Research publishes CVE-2024-4577 Exploits in the Wild One Day After Disclosure
  2. 2024-06-09 19:42 UTCCVE record publishes CVE-2024-4577 (PHP-CGI argument injection)
  3. 2026-10-21 14:04 UTCCISA publishes CISA Known Exploited Vulnerabilities catalog (JSON feed)
  4. 2026-10-22 11:25 UTCSaved into the evidence vault: Akamai Security Research
  5. 2026-10-22Enters this site as confirmed in v0.2.0 (reconstructed from git)

Published: when the source says it was published. Saved: the first capture into the evidence vault. The rest are this site: the release in which the fact first appeared and every release that changed its wording, sources or status.

What it rests on

CISA Known Exploited Vulnerabilities catalog (JSON feed)CVE-2024-4577 (PHP-CGI argument injection)CVE-2024-4577 Exploits in the Wild One Day After Disclosur…fact kev-precedent

Where this fact appears

In the briefings for:

And on every claim.

Every version of this fact

v1 · site v0.2.0 · 22 October 2026 · confirmed
The last PHP core RCE, CVE-2024-4577, was exploited in the wild one day after disclosure and in KEV three days after; php2shell is not in KEV after one day
Who says it: CISA KEV catalog; Akamai (2024)
Status: confirmed
Topic: exploitation
Sources: cisa-kev-json, cve-cve-2024-4577, akamai-blog-cve-2024-4577-one-day