How severe is CVE-2015-2806?

CVE-2015-2806 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2015-2806 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-2806?

CVE-2015-2806 primarily affects Gnu Libtasn1. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-2806?

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-2015-2806 published?

CVE-2015-2806 was published on 2015-04-10 and last updated on 2026-06-17.

CVE-2015-2806

CVE-2015-2806 is a critical-severity vulnerability in Gnu Libtasn1 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: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Gnu Libtasn1
Published: 2015-04-10
Last modified: 2026-06-17

Description

Stack-based buffer overflow in asn1_der_decoding in libtasn1 before 4.4 allows remote attackers to have unspecified impact via unknown vectors.

Frequently asked questions

What is CVE-2015-2806?: Stack-based buffer overflow in asn1_der_decoding in libtasn1 before 4.4 allows remote attackers to have unspecified impact via unknown vectors.
How severe is CVE-2015-2806?: CVE-2015-2806 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2015-2806 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-2806?: CVE-2015-2806 primarily affects Gnu Libtasn1. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-2806?: 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-2015-2806 published?: CVE-2015-2806 was published on 2015-04-10 and last updated on 2026-06-17.

References

Affected products (9)

cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*
cpe:2.3:a:gnu:libtasn1:*:*:*:*:*:*:*:*

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