How severe is CVE-2015-5276?

CVE-2015-5276 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2015-5276 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-5276?

CVE-2015-5276 affects Gnu Gcc. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-5276?

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

When was CVE-2015-5276 published?

CVE-2015-5276 was published on 2015-11-17 and last updated on 2026-06-17.

CVE-2015-5276

CVE-2015-5276 is a medium-severity vulnerability in Gnu Gcc 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. The underlying weakness is classified as CWE-200.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Gnu Gcc
Published: 2015-11-17
Last modified: 2026-06-17

Description

The std::random_device class in libstdc++ in the GNU Compiler Collection (aka GCC) before 4.9.4 does not properly handle short reads from blocking sources, which makes it easier for context-dependent attackers to predict the random values via unspecified vectors.

Frequently asked questions

What is CVE-2015-5276?: The std::random_device class in libstdc++ in the GNU Compiler Collection (aka GCC) before 4.9.4 does not properly handle short reads from blocking sources, which makes it easier for context-dependent attackers to predict the random values via unspecified vectors.
How severe is CVE-2015-5276?: CVE-2015-5276 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2015-5276 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-5276?: CVE-2015-5276 affects Gnu Gcc. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-5276?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-5276 published?: CVE-2015-5276 was published on 2015-11-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gnu:gcc:*:*:*:*:*:*:*:*

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