CVE-2011-1774

NONECVSS 0.0Weaponized

0.0

WebKit in Apple Safari before 5.0.6 has improper libxslt security settings, which allows remote attackers to create arbitrary files, and consequently execute arbitrary code, via a crafted web site. NOTE: this may overlap CVE-2011-1425.

CVSS v3: —
EG Score: 0.0(none)
EPSS: 98.9%
KEV: Not listed

Published

July 21, 2011

Last Modified

April 29, 2026

References (14)

secalert@redhathttp://lists.apple.com/archives/Security-announce/2011//Oct/msg00000.html
secalert@redhathttp://lists.apple.com/archives/Security-announce/2011//Oct/msg00001.html
secalert@redhathttp://lists.apple.com/archives/security-announce/2011//Jul/msg00002.html
secalert@redhathttp://securityreason.com/securityalert/8481
secalert@redhathttp://support.apple.com/kb/HT4808
secalert@redhathttp://support.apple.com/kb/HT4981
secalert@redhathttp://support.apple.com/kb/HT4999
af854a3a-2127-422b-91ae-364da2661108http://lists.apple.com/archives/Security-announce/2011//Oct/msg00000.html
af854a3a-2127-422b-91ae-364da2661108http://lists.apple.com/archives/Security-announce/2011//Oct/msg00001.html
af854a3a-2127-422b-91ae-364da2661108http://lists.apple.com/archives/security-announce/2011//Jul/msg00002.html
af854a3a-2127-422b-91ae-364da2661108http://securityreason.com/securityalert/8481
af854a3a-2127-422b-91ae-364da2661108http://support.apple.com/kb/HT4808
af854a3a-2127-422b-91ae-364da2661108http://support.apple.com/kb/HT4981
af854a3a-2127-422b-91ae-364da2661108http://support.apple.com/kb/HT4999

Weakness Classification(1)

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

CWE-20Improper Input Validation

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-05 06:08 UTCepss_batch
2026-06-05 06:07 UTCepss_batch
2026-06-04 13:09 UTCepss_batch
2026-06-04 13:09 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-29 13:40 UTCepss_batch
2026-05-29 07:25 UTCEG score recompute
2026-05-29 07:25 UTCGHSA enrichment
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-26 07:16 UTCepss_batch

Publicly available exploits

(3 references)

Working exploit code is in the public domain (2 Metasploit modules) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-17993✓ verified
First seen Oct 18, 2011
Apple Safari Webkit - libxslt Arbitrary File Creation (Metasploit)
Open source ↗
Metasploitexploit/windows/browser/safari_xslt_output✓ verified
First seen Jul 20, 2011
Apple Safari Webkit libxslt Arbitrary File Creation
Open source ↗
Metasploitauxiliary/server/webkit_xslt_dropper✓ verified
First seen Jan 1, 2011
Cross Platform Webkit File Dropper
Open source ↗

Frequently asked(4)

What is CVE-2011-1774?

CVE-2011-1774 is a none vulnerability published on July 21, 2011. WebKit in Apple Safari before 5.0.6 has improper libxslt security settings, which allows remote attackers to create arbitrary files, and consequently execute arbitrary code, via a crafted web site. NOTE: this may overlap CVE-2011-1425.

When was CVE-2011-1774 disclosed?

CVE-2011-1774 was first published in the National Vulnerability Database on July 21, 2011, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2011-1774 actively exploited?

CVE-2011-1774 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2011-1774?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-1774, 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.

Dependency Blast Radius

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CVE-2011-1774

📅 Published

🔄 Last Modified

🔗 References (14)

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(4)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2011-1774?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (14)

Frequently asked(4)

Related CVEs(same CWE)