October 13, 2026

CVE Watchtower

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CVE-2012-1823NVD

Vulnerability Summary

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.
Severity Level
CRITICAL(9.8)
Published Date
May 11, 2012
Last Modified
Apr 21, 2026
PoC
Available(Metasploit, Nuclei)
Exploitation Status
ACTIVE
EPSS Score (30-Day)
94.36%Probability
Root Weakness (CWE)
CWE-77: Unknown/Unlisted Weakness ↗
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.
CVSS v3.1 Base Metrics — Score 9.8 (CRITICAL)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

Affected & Patched Versions

Affected Versions
  • Php Php < 5.3.12
  • Php Php >= 5.4.0 and < 5.4.2
  • Fedoraproject Fedora
  • Debian Debian Linux
  • Hp Hp-ux
  • Opensuse Opensuse
  • Suse Linux Enterprise Server
  • Suse Linux Enterprise Software Development Kit
  • Apple Mac Os X >= 10.6.8 and < 10.7.5
  • Apple Mac Os X >= 10.8.0 and < 10.8.2
  • Redhat Application Stack
  • Redhat Gluster Storage Server For On-premise
  • Redhat Storage
  • Redhat Storage For Public Cloud
  • Redhat Enterprise Linux Desktop
  • Redhat Enterprise Linux Eus
  • Redhat Enterprise Linux Server
  • Redhat Enterprise Linux Server Aus
  • Redhat Enterprise Linux Workstation
Patched Versions
  • Php Php 5.3.12
  • Php Php 5.4.2
  • Apple Mac Os X 10.7.5
  • Apple Mac Os X 10.8.2
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🚫Ad-Free — Uninterrupted experience.
🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
🚫Ad-Free — Uninterrupted experience.

External References