How severe is CVE-2015-20111?

CVE-2015-20111 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2015-20111 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2015-20111?

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.

Does CVE-2015-20111 have an EU (EUVD) identifier?

Yes. CVE-2015-20111 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2015-9391.

When was CVE-2015-20111 published?

CVE-2015-20111 was published on 2024-11-18 and last updated on 2026-06-17.

CVE-2015-20111

CVE-2015-20111 is a critical-severity vulnerability with a CVSS 3.x base score of 9.8. 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-120.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2015-9391
Weakness: CWE-120
Published: 2024-11-18
Last modified: 2026-06-17

Description

miniupnp before 4c90b87, as used in Bitcoin Core before 0.12 and other products, lacks checks for snprintf return values, leading to a buffer overflow and significant data leak, a different vulnerability than CVE-2019-12107. In Bitcoin Core before 0.12, remote code execution was possible in conjunction with CVE-2015-6031 exploitation.

Frequently asked questions

What is CVE-2015-20111?: miniupnp before 4c90b87, as used in Bitcoin Core before 0.12 and other products, lacks checks for snprintf return values, leading to a buffer overflow and significant data leak, a different vulnerability than CVE-2019-12107. In Bitcoin Core before 0.12, remote code execution was possible in conjunction with CVE-2015-6031 exploitation.
How severe is CVE-2015-20111?: CVE-2015-20111 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2015-20111 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2015-20111?: 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.
Does CVE-2015-20111 have an EU (EUVD) identifier?: Yes. CVE-2015-20111 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2015-9391.
When was CVE-2015-20111 published?: CVE-2015-20111 was published on 2024-11-18 and last updated on 2026-06-17.

References

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