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CVE-2011-1094

16
FAUCET Score

CVE-2011-1094 describes a vulnerability in KDE KSSL within kdelibs versions prior to 4.6.1, specifically in the kio/kio/tcpslavebase.cpp component. This flaw allows man-in-the-middle attackers to spoof arbitrary SSL servers. The vulnerability arises because the software fails to properly verify that the server hostname matches the domain name in an X.509 certificate, enabling attackers to use certificates issued for an IP address by a legitimate Certificate Authority. The vulnerability has a CVSS score of 4.3 (Medium severity), indicating a network-based attack with medium complexity and a potential impact of partial integrity compromise, but no confidentiality or availability impact. Its EPSS score is very low, suggesting a low likelihood of exploitation. There is no evidence of active exploitation, nor are there known Metasploit modules, Nuclei templates, or ExploitDB entries. Community discussion and media coverage for this CVE are also non-existent, further indicating a lack of widespread attention or exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.6CPE matchmatch criteria
cpe:2.3:a:redhat:kdelibs:*:*:*:*:*:*:*:*
3.5.2CPE matchmatch criteria
cpe:2.3:a:redhat:kdelibs:3.5.2:*:*:*:*:*:*:*
3.5.9CPE matchmatch criteria
cpe:2.3:a:redhat:kdelibs:3.5.9:*:*:*:*:*:*:*
3.5.10CPE matchmatch criteria
cpe:2.3:a:redhat:kdelibs:3.5.10:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.00%
Probability of exploitation in next 30 days
EPSS Percentile
59.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0100 is in the 18th percentile among its peer group of 19,956 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kdelibs-6:4.3.4-11.el6_0.2
View patch

Vendor Advisories (1)

redhatCVE-2011-1094Moderate

kdelibs: SSL certificate for IP address accepted as valid for hosts that resolve to the IP

Jan 31, 2011

References

openwall.com / lists/oss-security/2011/03/08/13
Patch
openwall.com / lists/oss-security/2011/03/08/20
Patch
secunia.com / advisories/44108
exchange.xforce.ibmcloud.com / vulnerabilities/65986
projects.kde.org / projects/kde/kdelibs/repository/revisions/76f935197599a335a5fe09b78751ddb455248cf7
Patch
mandriva.com / security/advisories
securityfocus.com / bid/46789
ubuntu.com / usn/USN-1110-1
vupen.com / english/advisories/2011/0913
vupen.com / english/advisories/2011/0990