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CVE-2012-5621

20
FAUCET Score

CVE-2012-5621 describes a denial-of-service vulnerability in Ekiga versions prior to 4.0.0, specifically within the lib/engine/components/opal/opal-call.cpp component. Remote attackers can exploit this by sending an OPAL connection containing invalid UTF-8 strings in the party name, leading to a crash of the application. With a CVSS score of 5.0, this vulnerability is of medium severity, requiring no authentication and having low attack complexity, though its impact is limited to availability (a crash). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.9.90CPE matchmatch criteria
cpe:2.3:a:ekiga:ekiga:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.77%
Probability of exploitation in next 30 days
EPSS Percentile
84.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0278 is in the 78th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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 (2)

redhatpatch availablevia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: ekiga

Vendor Advisories (1)

redhatCVE-2012-5621Moderate

ekiga: DoS (crash) after receiving call from other party with not UTF-8 valid name

Jun 20, 2011

References

ftp.gnome.org / pub/gnome/sources/ekiga/4.0/ekiga-4.0.0.news
blogs.oracle.com / sunsecurity/entry/cve_2012_5621_denial_of
bugzilla.redhat.com / show_bug.cgi
Patch
seclists.org / oss-sec/2012/q4/407
exchange.xforce.ibmcloud.com / vulnerabilities/80640
git.gnome.org / browse/ekiga/commit
lists.fedoraproject.org / pipermail/package-announce/2013-March/099554.html
securityfocus.com / bid/56790