Exploitation evidence
Known exploited · CISA KEV listed
Added 2022-03-25. Ransomware campaign use: Unknown.
CISA required action: Apply updates per vendor instructions.
CISA due date: 2022-04-15. 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
n/a / n/a
Default status: Not specified
- affected: n/a
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
- http://marc.info/?l=bugtraq&m=134012830914727&w=2
- http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00011.html
- http://www.securitytracker.com/id?1027022
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:068
- http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00002.html
- http://rhn.redhat.com/errata/RHSA-2012-0546.html
- http://rhn.redhat.com/errata/RHSA-2012-0568.html
- http://rhn.redhat.com/errata/RHSA-2012-0569.html
- http://www.php.net/ChangeLog-5.php#5.4.2
- http://secunia.com/advisories/49014
- http://rhn.redhat.com/errata/RHSA-2012-0570.html
- http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00007.html
- https://bugs.php.net/bug.php?id=61910
- http://www.kb.cert.org/vuls/id/673343
- http://rhn.redhat.com/errata/RHSA-2012-0547.html
- http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html
- http://support.apple.com/kb/HT5501
- http://eindbazen.net/2012/05/php-cgi-advisory-cve-2012-1823/
- http://secunia.com/advisories/49065
- http://www.kb.cert.org/vuls/id/520827
- https://bugs.php.net/patch-display.php?bug_id=61910&patch=cgi.diff&revision=1335984315&display=1
- http://www.debian.org/security/2012/dsa-2465
- http://secunia.com/advisories/49085
- http://www.php.net/archive/2012.php#id2012-05-03-1
- http://secunia.com/advisories/49087
- http://www.openwall.com/lists/oss-security/2024/06/07/1
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PKGTQUOA2NTZ3RXN22CSAUJPIRUYRB4B/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W45DBOH56NQDRTOM2DN2LNA2FZIMC3PK/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PKGTQUOA2NTZ3RXN22CSAUJPIRUYRB4B/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-1823
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": 0.99998,
"percentile": 0.9999
}10 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-10",
"epss": 0.99998,
"percentile": 0.9999
}09 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-09",
"epss": 0.99998,
"percentile": 0.9999
}08 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-08",
"epss": 0.99998,
"percentile": 0.9999
}08 Nov 2026, 00:20 Jerusalem · CVE Program record changed
Stored CNA snapshot at this observation.
{
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{
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{
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{
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"url": "http://www.kb.cert.org/vuls/id/520827"
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{
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"url": "https://bugs.php.net/patch-display.php?bug_id=61910&patch=cgi.diff&revision=1335984315&display=1"
},
{
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{
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{
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{
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{
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{
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"tags": [
"mailing-list",
"x_transferred"
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"url": "http://www.openwall.com/lists/oss-security/2024/06/07/1"
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{
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"tags": [
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"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PKGTQUOA2NTZ3RXN22CSAUJPIRUYRB4B/"
},
{
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"tags": [
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"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W45DBOH56NQDRTOM2DN2LNA2FZIMC3PK/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PKGTQUOA2NTZ3RXN22CSAUJPIRUYRB4B/"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2012-1823",
"options": [
{
"Exploitation": "active"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-02-07T13:10:55.600294Z",
"version": "2.0.3"
},
"type": "ssvc"
}
},
{
"other": {
"content": {
"dateAdded": "2022-03-25",
"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-1823"
},
"type": "kev"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-77",
"description": "CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-10-22T00:05:47.580Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"government-resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-1823"
}
],
"timeline": [
{
"lang": "en",
"time": "2022-03-25T00:00:00.000Z",
"value": "CVE-2012-1823 added to CISA KEV"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"datePublic": "2012-05-03T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "sapi/cgi/cgi_main.c in PHP before 5.3.12 and 5.4.x before 5.4.2, when configured as a CGI script (aka php-cgi), does not properly handle query strings that lack an = (equals sign) character, which allows remote attackers to execute arbitrary code by placing command-line options in the query string, related to lack of skipping a certain php_getopt for the 'd' case."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-06-13T04:06:14.603Z",
"orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
"shortName": "certcc"
},
"references": [
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],
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},
{
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"tags": [
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],
"url": "http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00011.html"
},
{
"name": "1027022",
"tags": [
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],
"url": "http://www.securitytracker.com/id?1027022"
},
{
"name": "HPSBMU02786",
"tags": [
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],
"url": "http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041"
},
{
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"tags": [
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],
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2012:068"
},
{
"name": "openSUSE-SU-2012:0590",
"tags": [
"vendor-advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00002.html"
},
{
"name": "RHSA-2012:0546",
"tags": [
"vendor-advisory"
],
"url": "http://rhn.redhat.com/errata/RHSA-2012-0546.html"
},
{
"name": "RHSA-2012:0568",
"tags": [
"vendor-advisory"
],
"url": "http://rhn.redhat.com/errata/RHSA-2012-0568.html"
},
{
"name": "RHSA-2012:0569",
"tags": [
"vendor-advisory"
],
"url": "http://rhn.redhat.com/errata/RHSA-2012-0569.html"
},
{
"url": "http://www.php.net/ChangeLog-5.php#5.4.2"
},
{
"name": "49014",
"tags": [
"third-party-advisory"
],
"url": "http://secunia.com/advisories/49014"
},
{
"name": "RHSA-2012:0570",
"tags": [
"vendor-advisory"
],
"url": "http://rhn.redhat.com/errata/RHSA-2012-0570.html"
},
{
"name": "SUSE-SU-2012:0598",
"tags": [
"vendor-advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00007.html"
},
{
"url": "https://bugs.php.net/bug.php?id=61910"
},
{
"name": "VU#673343",
"tags": [
"third-party-advisory"
],
"url": "http://www.kb.cert.org/vuls/id/673343"
},
{
"name": "RHSA-2012:0547",
"tags": [
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],
"url": "http://rhn.redhat.com/errata/RHSA-2012-0547.html"
},
{
"name": "APPLE-SA-2012-09-19-2",
"tags": [
"vendor-advisory"
],
"url": "http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html"
},
{
"url": "http://support.apple.com/kb/HT5501"
},
{
"url": "http://eindbazen.net/2012/05/php-cgi-advisory-cve-2012-1823/"
},
{
"name": "49065",
"tags": [
"third-party-advisory"
],
"url": "http://secunia.com/advisories/49065"
},
{
"name": "VU#520827",
"tags": [
"third-party-advisory"
],
"url": "http://www.kb.cert.org/vuls/id/520827"
},
{
"url": "https://bugs.php.net/patch-display.php?bug_id=61910&patch=cgi.diff&revision=1335984315&display=1"
},
{
"name": "SSRT100877",
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],
"url": "http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041"
},
{
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"tags": [
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],
"url": "http://marc.info/?l=bugtraq&m=134012830914727&w=2"
},
{
"name": "DSA-2465",
"tags": [
"vendor-advisory"
],
"url": "http://www.debian.org/security/2012/dsa-2465"
},
{
"name": "49085",
"tags": [
"third-party-advisory"
],
"url": "http://secunia.com/advisories/49085"
},
{
"url": "http://www.php.net/archive/2012.php#id2012-05-03-1"
},
{
"name": "49087",
"tags": [
"third-party-advisory"
],
"url": "http://secunia.com/advisories/49087"
},
{
"name": "[oss-security] 20240606 PHP security releases 8.3.8, 8.2.20, and 8.1.29",
"tags": [
"mailing-list"
],
"url": "http://www.openwall.com/lists/oss-security/2024/06/07/1"
},
{
"name": "FEDORA-2024-49aba7b305",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PKGTQUOA2NTZ3RXN22CSAUJPIRUYRB4B/"
},
{
"name": "FEDORA-2024-52c23ef1ec",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W45DBOH56NQDRTOM2DN2LNA2FZIMC3PK/"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
"assignerShortName": "certcc",
"cveId": "CVE-2012-1823",
"datePublished": "2012-05-11T10:00:00.000Z",
"dateReserved": "2012-03-21T00:00:00.000Z",
"dateUpdated": "2025-11-04T17:11:54.860Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}07 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-07",
"epss": 0.99998,
"percentile": 0.9999
}06 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-06",
"epss": 0.99998,
"percentile": 0.9999
}05 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-05",
"epss": 0.99998,
"percentile": 0.9999
}04 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-04",
"epss": 0.99998,
"percentile": 0.9999
}03 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-03",
"epss": 0.99998,
"percentile": 0.9999
}03 Nov 2026, 02:22 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-02",
"epss": 0.99998,
"percentile": 0.9999
}03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed
Stored KEV snapshot at this observation.
{
"cveID": "CVE-2012-1823",
"cwes": [
"CWE-20"
],
"dateAdded": "2022-03-25",
"dueDate": "2022-04-15",
"forensicTriage": "No",
"knownRansomwareCampaignUse": "Unknown",
"notes": "https://nvd.nist.gov/vuln/detail/CVE-2012-1823",
"product": "PHP",
"requiredAction": "Apply updates per vendor instructions.",
"shortDescription": "sapi/cgi/cgi_main.c in PHP, when configured as a CGI script, does not properly handle query strings, which allows remote attackers to execute arbitrary code.",
"vendorProject": "PHP",
"vulnerabilityName": "PHP-CGI Query String Parameter Vulnerability"
}