How severe is CVE-2012-6432?

No CVSS score has been assigned to CVE-2012-6432 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2012-6432?

CVE-2012-6432 affects the following packages: symfony/symfony (Packagist), symfony/symfony (Packagist), symfony/symfony (Packagist). Ecosystems affected: Packagist.

How do I fix CVE-2012-6432?

A fix is available for CVE-2012-6432; check the affected-versions list above or the advisory for the patched release of symfony/symfony, then make sure no transitive dependency still pins the vulnerable range.

How do I detect CVE-2012-6432 in my Packagist dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for symfony/symfony, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2012-6432 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Is CVE-2012-6432 actively exploited in the wild?

No public exploit code has been indexed for CVE-2012-6432 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2012-6432?

CVE-2012-6432 has an EPSS (Exploit Prediction Scoring System) score of 1.2%, placing it in the 68th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2012-6432?

CVE-2012-6432 is classified as CWE-264 (CWE-264). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2012-6432 published, and has it been updated?

CVE-2012-6432 was published on May 17, 2022 and was last updated on December 2, 2024. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CVE-2012-6432: symfony — Fixed in 2.0.20

EPSS Exploitation Probability

via FIRST.org ↗

1.2%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs68th percentile — riskier than 68% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

3 pkgs affected

🐘symfony/symfony🐘symfony/symfony🐘symfony/symfony

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

Symfony 2.0.x before 2.0.20, 2.1.x before 2.1.5, and 2.2-dev, when the internal routes configuration is enabled, allows remote attackers to access arbitrary services via vectors involving a URI beginning with a /_internal substring.

Affected Packages

3 total 2 fixed

Ecosystem	Package	Vulnerable range	Fix
🐘Packagist	`symfony/symfony`	all versions	No fix
🐘Packagist	`symfony/symfony`	≥ 2.0.0&&< 2.0.20	2.0.20`composer require symfony/symfony:^2.0.20`
🐘Packagist	`symfony/symfony`	≥ 2.1.0&&< 2.1.5	2.1.5`composer require symfony/symfony:^2.1.5`

Affected Products

1 product · 26 configurations

Application

symfonysensiolabs

26 versions

2.0.02.0.12.0.22.0.32.0.42.0.52.0.62.0.72.0.82.0.92.0.102.0.11

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for symfony/symfony, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
A fix is available for CVE-2012-6432; check the affected-versions list above or the advisory for the patched release of symfony/symfony, then make sure no transitive dependency still pins the vulnerable range.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

Symfony 2.0.x before 2.0.20, 2.1.x before 2.1.5, and 2.2-dev, when the internal routes configuration is enabled, allows remote attackers to access arbitrary services via vectors involving a URI beginning with a `/_internal` substring.

O3 Security · Impact-Aware SCA

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CVE-2012-6432 — symfony