How severe is CVE-2014-3954?

CVE-2014-3954 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2014-3954 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-3954?

CVE-2014-3954 primarily affects Freebsd. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-3954?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2014-3954 published?

CVE-2014-3954 was published on 2014-10-27 and last updated on 2026-06-17.

CVE-2014-3954

CVE-2014-3954 is a critical-severity vulnerability in Freebsd with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Freebsd
Published: 2014-10-27
Last modified: 2026-06-17

Description

Stack-based buffer overflow in rtsold in FreeBSD 9.1 through 10.1-RC2 allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via crafted DNS parameters in a router advertisement message.

Frequently asked questions

What is CVE-2014-3954?: Stack-based buffer overflow in rtsold in FreeBSD 9.1 through 10.1-RC2 allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via crafted DNS parameters in a router advertisement message.
How severe is CVE-2014-3954?: CVE-2014-3954 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2014-3954 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-3954?: CVE-2014-3954 primarily affects Freebsd. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-3954?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2014-3954 published?: CVE-2014-3954 was published on 2014-10-27 and last updated on 2026-06-17.

References

Affected products (16)

cpe:2.3:o:freebsd:freebsd:9.1:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:9.1:p4:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:9.1:p5:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:9.2:-:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:9.2:prerelease:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:9.2:rc1:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:9.2:rc2:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:9.3:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:9.3:rc1:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:9.3:rc2:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:10.0:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:10.0:rc1:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:10.0:rc2:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:10.1:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:10.1:rc1:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:10.1:rc2:*:*:*:*:*:*

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