lib/engine/components/opal/opal-call.cpp in ekiga before 4.0.0 allows remote attackers to cause a denial of service (crash) via an OPAL con…

published 2014-09-29 12 y ago modified 2026-06-16 4 mo ago also EUVD-2012-5507

cvss: 5.0; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 2.8%; EPSS 2.8% chance of exploitation in 30 days, percentile 86%
public exploits: 0; none known

lib/engine/components/opal/opal-call.cpp in ekiga before 4.0.0 allows remote attackers to cause a denial of service (crash) via an OPAL connection with a party name that contains invalid UTF-8 strings.

Patch / fix

links 2

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-5621 updated 2026-11-05 cvss 5.0

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

Red Hat Enterprise Linux 6 ekiga
affected: no fix planned “Will not fix”
Red Hat Enterprise Linux 5 ekiga
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.77% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness

CWE-20 Improper Input Validation

References

Sources

CVE List CVE-2012-5621
NVD CVE-2012-5621

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary