Exploitation evidence
Known exploited · CISA KEV listed
Added 2024-06-12. Ransomware campaign use: Known.
CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA due date: 2024-07-03. This is the catalog’s deadline, not an assessment of your organization’s exposure.
KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗Reported products and versions
PHP Group / PHP
Default status: affected
- affected: 8.1.* to < 8.1.29 (semver)
- affected: 8.2.* to < 8.2.20 (semver)
- affected: 8.3.* to < 8.3.8 (semver)
Fixes and workarounds
No explicit solution text in the downloaded CVE record. Consult the vendor advisory; unaffected version ranges are shown above as reported, not inferred as a patch recommendation.
Sources and related reporting
CVE Program record ↗ · Download tracked evidence as JSON
- https://github.com/php/php-src/security/advisories/GHSA-3qgc-jrrr-25jv
- https://blog.orange.tw/2024/06/cve-2024-4577-yet-another-php-rce.html
- https://devco.re/blog/2024/06/06/security-alert-cve-2024-4577-php-cgi-argument-injection-vulnerability-en/
- https://arstechnica.com/security/2024/06/php-vulnerability-allows-attackers-to-run-malicious-code-on-windows-servers/
- https://www.imperva.com/blog/imperva-protects-against-critical-php-vulnerability-cve-2024-4577/
- https://github.com/11whoami99/CVE-2024-4577
- https://github.com/xcanwin/CVE-2024-4577-PHP-RCE
- https://github.com/rapid7/metasploit-framework/pull/19247
- https://labs.watchtowr.com/no-way-php-strikes-again-cve-2024-4577/
- https://github.com/watchtowrlabs/CVE-2024-4577
- https://www.php.net/ChangeLog-8.php#8.1.29
- https://www.php.net/ChangeLog-8.php#8.2.20
- https://www.php.net/ChangeLog-8.php#8.3.8
- https://cert.be/en/advisory/warning-php-remote-code-execution-patch-immediately
- https://isc.sans.edu/diary/30994
- http://www.openwall.com/lists/oss-security/2024/06/07/1
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PKGTQUOA2NTZ3RXN22CSAUJPIRUYRB4B/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W45DBOH56NQDRTOM2DN2LNA2FZIMC3PK/
- https://security.netapp.com/advisory/ntap-20240621-0008/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-4577
- https://www.vicarius.io/vsociety/posts/php-cgi-os-command-injection-vulnerability-cve-2024-4577
- https://www.vicarius.io/vsociety/posts/php-cgi-argument-injection-to-rce-cve-2024-4577
- https://blog.talosintelligence.com/new-persistent-attacks-japan/
Observed change timeline
History begins when Egret first downloads each source. It is not the complete upstream CVE history.
12 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-12",
"epss": 0.99987,
"percentile": 0.99984
}10 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-10",
"epss": 0.99987,
"percentile": 0.99984
}09 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-09",
"epss": 0.99987,
"percentile": 0.99984
}08 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-08",
"epss": 0.99987,
"percentile": 0.99984
}07 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-07",
"epss": 0.99987,
"percentile": 0.99984
}06 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-06",
"epss": 0.99987,
"percentile": 0.99984
}06 Nov 2026, 06:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-05",
"epss": 0.99987,
"percentile": 0.99984
}04 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-04",
"epss": 0.99987,
"percentile": 0.99984
}04 Nov 2026, 00:20 Jerusalem · CVE Program record changed
Stored CNA snapshot at this observation.
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"repo": "https://github.com/php/php-src",
"vendor": "PHP Group",
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"datePublic": "2024-06-09T19:30:00.000Z",
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"availabilityImpact": "HIGH",
"baseScore": 9.8,
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"discovery": "EXTERNAL"
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"cveId": "CVE-2024-4577",
"datePublished": "2024-06-09T19:42:36.464Z",
"dateReserved": "2024-05-06T22:21:01.742Z",
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}03 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-03",
"epss": 0.99987,
"percentile": 0.99984
}03 Nov 2026, 02:22 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-02",
"epss": 0.99987,
"percentile": 0.99984
}03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed
Stored KEV snapshot at this observation.
{
"cveID": "CVE-2024-4577",
"cwes": [
"CWE-78"
],
"dateAdded": "2024-06-12",
"dueDate": "2024-07-03",
"forensicTriage": "No",
"knownRansomwareCampaignUse": "Known",
"notes": "This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see: https://www.php.net/ChangeLog-8.php#; https://nvd.nist.gov/vuln/detail/CVE-2024-4577",
"product": "PHP",
"requiredAction": "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.",
"shortDescription": "PHP, specifically Windows-based PHP used in CGI mode, contains an OS command injection vulnerability that allows for arbitrary code execution. This vulnerability is a patch bypass for CVE-2012-1823.",
"vendorProject": "PHP Group",
"vulnerabilityName": "PHP-CGI OS Command Injection Vulnerability"
}