How severe is CVE-2008-3910?

CVE-2008-3910 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2008-3910 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-3910?

CVE-2008-3910 affects Hsc Dns2tcp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2008-3910?

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-2008-3910 published?

CVE-2008-3910 was published on 2008-09-04 and last updated on 2026-06-16.

CVE-2008-3910

CVE-2008-3910 is a critical-severity vulnerability in Hsc Dns2tcp 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-189.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Hsc Dns2tcp
Published: 2008-09-04
Last modified: 2026-06-16

Description

dns2tcp before 0.4.1 does not properly handle negative values in a certain length field in the input argument to the (1) dns_simple_decode or (2) dns_decode function, which allows remote attackers to overwrite a buffer and have unspecified other impact.

Frequently asked questions

What is CVE-2008-3910?: dns2tcp before 0.4.1 does not properly handle negative values in a certain length field in the input argument to the (1) dns_simple_decode or (2) dns_decode function, which allows remote attackers to overwrite a buffer and have unspecified other impact.
How severe is CVE-2008-3910?: CVE-2008-3910 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2008-3910 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-3910?: CVE-2008-3910 affects Hsc Dns2tcp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2008-3910?: 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-2008-3910 published?: CVE-2008-3910 was published on 2008-09-04 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:hsc:dns2tcp:*:*:*:*:*:*:*:*

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