CVE-2011-4078

CVE-2011-4078 is a medium-severity vulnerability in Roundcube Webmail with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-399.

Key facts

• Severity: Medium (CVSS 2.0 base score 5.0)
• EPSS exploit prediction: 2% (81st percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-399
• Affected product: Roundcube Webmail
• Published: 2011-11-03
• Last modified: 2026-06-16

Description

include/iniset.php in Roundcube Webmail 0.5.4 and earlier, when PHP 5.3.7 or 5.3.8 is used, allows remote attackers to trigger a GET request for an arbitrary URL, and cause a denial of service (resource consumption and inbox outage), via a Subject header containing only a URL, a related issue to CVE-2011-3379.

Frequently asked questions

What is CVE-2011-4078?

include/iniset.php in Roundcube Webmail 0.5.4 and earlier, when PHP 5.3.7 or 5.3.8 is used, allows remote attackers to trigger a GET request for an arbitrary URL, and cause a denial of service (resource consumption and inbox outage), via a Subject header containing only a URL, a related issue to CVE-2011-3379.

How severe is CVE-2011-4078?

CVE-2011-4078 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2011-4078 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-4078?

CVE-2011-4078 primarily affects Roundcube Webmail. In total, 26 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-4078?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-4078 published?

CVE-2011-4078 was published on 2011-11-03 and last updated on 2026-06-16.

References

• http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
• http://openwall.com/lists/oss-security/2011/10/26/6
• http://trac.roundcube.net/ticket/1488086
• http://www.securityfocus.com/bid/50402
• https://exchange.xforce.ibmcloud.com/vulnerabilities/71025

Affected products (26)

• cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.1:*:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.1:alpha:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.1:beta:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.1:beta2:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.1:rc1:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.1:rc2:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.2:*:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.2:alpha:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.2:beta:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.3:*:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.3:beta:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.3:rc1:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.3.1:*:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.4:*:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.4:beta:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.4.1:*:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.4.2:*:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.5:*:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.5:beta:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.5:rc:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.5.1:*:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.5.2:*:*:*:*:*:*:*
• cpe:2.3:a:roundcube:webmail:0.5.3:*:*:*:*:*:*:*

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Other CWE-399 (Resource Management Errors) vulnerabilities

• CVE-2015-8104 — Critical (CVSS 10.0): The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a…
• CVE-2015-0339 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
• CVE-2015-0335 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
• CVE-2015-0333 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
• CVE-2014-4121 — Critical (CVSS 10.0): Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2 does not properly parse internationalized…
• CVE-2014-0560 — Critical (CVSS 10.0): Use-after-free vulnerability in Adobe Reader and Acrobat 10.x before 10.1.12 and 11.x before 11.0.09 on Windows and OS…

Browse all CWE-399 (Resource Management Errors) vulnerabilities →

Threat intelligence

Threat-intel indicators referencing this CVE:

• 179.125.175.74 (ipv4-addr)