CVE-2009-3051

Multiple format string vulnerabilities in lib/silcclient/client_entry.c in Secure Internet Live...

7.5 High

Multiple format string vulnerabilities in lib/silcclient/client_entry.c in Secure Internet Live Conferencing (SILC) Toolkit before 1.1.10, and SILC Client before 1.1.8, allow remote attackers to execute arbitrary code via format string specifiers in a nickname field, related to the (1) silc_client_add_client, (2) silc_client_update_client, and (3) silc_client_nickname_format functions.

Exploit likelihood

4.83%Down 7.4 points since Feb 4, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2009-3051
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness: CWE-134
Updated: 2026-11-02

CVE List No score

Record: CVE-2009-3051
Updated: 2026-11-02

EUVDEUVD-2009-3035 No score

Record: EUVD-2009-3035
Updated: 2026-11-03

GitHub AdvisoriesGHSA-v9wf-6v95-96rm No score

Multiple format string vulnerabilities in lib/silcclient/client_entry.c in Secure Internet Live...

Record: GHSA-v9wf-6v95-96rm
Weakness: CWE-134
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`silc-toolkit` Debian:5.0 From an advisory covering 4 CVEs	before 1.1.7-2+lenny1, plus listed versions 1.1.7-21.1.7-2+lenny1~bpo40+1	1.1.7-2+lenny1
`silc-client` Debian:5.0 From an advisory covering 4 CVEs	before 1.1.4-1+lenny1, plus listed versions 1.1.4-11.1.4-1+lenny1~bpo40+1	1.1.4-1+lenny1

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2009-3051 is a high vulnerability (CVSS 7.5) in Silcnet Silc Client, published September 4, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.83%, the 92nd percentile. No source names a fixed version.

References

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