CVE-2011-1939

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-04-22. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Weaponized
9.8EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • Public exploit code is available (Exploit-DB (verified), public exploit)
CISA-KEV: Not listedEPSS PROB: 4%CVSS: 9.8Exploit: Exploit-DB (verified) · public exploitExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

SQL injection vulnerability in Zend Framework 1.10.x before 1.10.9 and 1.11.x before 1.11.6 when using non-ASCII-compatible encodings in conjunction PDO_MySql in PHP before 5.3.6.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Track*)
EG Risk 75/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation65% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
4%
EPSS %ILE
90%
KEV
Not listed

Published

November 26, 2019

Last Modified

November 21, 2024

Advisory Details (7)

Auto-updated Sep 22, 2026
🔬 Proof of concept available. Patch available. Sources: redhat.
redhat Patch Available

CVE-2011-1939 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/cve-2011-1939
generic

CVE-2011-1939 - PSIRT.COM

http://www.securityfocus.com/bid/47919
generic

Zend Framework: SQL injection (GLSA 201408-01) — Gentoo security

http://security.gentoo.org/glsa/glsa-201408-01.xml
generic

CVE-2011-1939

https://security-tracker.debian.org/tracker/CVE-2011-1939
generic

Security Advisory - Security - Zend Framework

https://framework.zend.com/security/advisory/ZF2011-02
redhat

709394 – (CVE-2011-1939) CVE-2011-1939 php-ZendFramework: potential SQL injection vector when using PDO_MySql (ZF2011-02)

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-1939
generic🟡 PoC Available

PHP :: Bug #47802 :: PDO_MYSQL doesn't use the charset parameter

https://bugs.php.net/bug.php?id=47802

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 2× in last 7d / 9× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 110 total refreshes for this CVE.

  1. 2026-09-24 13:57 UTCEPSS rescore
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  22. 2026-07-23 01:05 UTCEG score recompute
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  74. 2026-05-29 13:41 UTCEPSS rescore
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Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-35784✓ verified
    First seen May 19, 2011

    Zend Framework 1.11.4 - 'PDO_MySql' Security Bypass

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2011-1939?
CVE-2011-1939 is a critical vulnerability published on November 26, 2019. SQL injection vulnerability in Zend Framework 1.10.x before 1.10.9 and 1.11.x before 1.11.6 when using non-ASCII-compatible encodings in conjunction PDO_MySql in PHP before 5.3.6.
When was CVE-2011-1939 disclosed?
CVE-2011-1939 was first published in the National Vulnerability Database on November 26, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2011-1939 actively exploited?
CVE-2011-1939 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4% probability of exploitation in the next 30 days, which ranks it in the top 10.2% of all scored CVEs.
What is the CVSS score of CVE-2011-1939?
CVE-2011-1939 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2011-1939?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-1939, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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