How severe is CVE-2007-3728?

CVE-2007-3728 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2007-3728 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-3728?

CVE-2007-3728 primarily affects Silc Silc Client. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-3728?

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

When was CVE-2007-3728 published?

CVE-2007-3728 was published on 2007-07-12 and last updated on 2026-06-16.

CVE-2007-3728

CVE-2007-3728 is a medium-severity vulnerability in Silc Silc Client 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.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Silc Silc Client
Published: 2007-07-12
Last modified: 2026-06-16

Description

Buffer overflow in lib/silcclient/client_notify.c of SILC Client and SILC Toolkit before 1.1.2 allows remote attackers to cause a denial of service via "NICK_CHANGE" notifications.

Frequently asked questions

What is CVE-2007-3728?: Buffer overflow in lib/silcclient/client_notify.c of SILC Client and SILC Toolkit before 1.1.2 allows remote attackers to cause a denial of service via "NICK_CHANGE" notifications.
How severe is CVE-2007-3728?: CVE-2007-3728 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2007-3728 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-3728?: CVE-2007-3728 primarily affects Silc Silc Client. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-3728?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-3728 published?: CVE-2007-3728 was published on 2007-07-12 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:silc:silc_client:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:silc:silc_toolkit:1.1.1:*:*:*:*:*:*:*

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