CVE-2015-5727

CVE-2015-5727 is a high-severity vulnerability in Botan Project Botan with a CVSS 3.x base score of 7.5. 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-399.

Key facts

• Severity: High (CVSS 3.x base score 7.5)
• CVSS v2: 7.8
• EPSS exploit prediction: 1% (71st percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-399
• Affected product: Botan Project Botan
• Published: 2016-05-13
• Last modified: 2026-06-17

Description

The BER decoder in Botan 1.10.x before 1.10.10 and 1.11.x before 1.11.19 allows remote attackers to cause a denial of service (memory consumption) via unspecified vectors, related to a length field.

Frequently asked questions

What is CVE-2015-5727?

The BER decoder in Botan 1.10.x before 1.10.10 and 1.11.x before 1.11.19 allows remote attackers to cause a denial of service (memory consumption) via unspecified vectors, related to a length field.

How severe is CVE-2015-5727?

CVE-2015-5727 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2015-5727 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-5727?

CVE-2015-5727 primarily affects Botan Project Botan. In total, 30 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-5727?

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

When was CVE-2015-5727 published?

CVE-2015-5727 was published on 2016-05-13 and last updated on 2026-06-17.

References

• http://botan.randombit.net/security.html
• http://www.debian.org/security/2016/dsa-3565

Affected products (30)

• cpe:2.3:a:botan_project:botan:1.10.0:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.10.1:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.10.2:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.10.3:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.10.4:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.10.5:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.10.6:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.10.7:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.10.8:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.10.9:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.11.0:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.11.1:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.11.2:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.11.3:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.11.4:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.11.5:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.11.6:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.11.7:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.11.8:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.11.9:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.11.10:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.11.11:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.11.12:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.11.13:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.11.14:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.11.15:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.11.16:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.11.17:*:*:*:*:*:*:*
• cpe:2.3:a:botan_project:botan:1.11.18:*:*:*:*:*:*:*
• cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

More vulnerabilities in Botan Project Botan

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• CVE-2016-6878 — Critical (CVSS 9.8): The Curve25519 code in botan before 1.11.31, on systems without a native 128-bit integer type, might allow attackers to…
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• CVE-2016-9132 — Critical (CVSS 9.8): In Botan 1.8.0 through 1.11.33, when decoding BER data an integer overflow could occur, which would cause an incorrect…
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Other CWE-399 (Resource Management Errors) vulnerabilities

• CVE-2015-8104 — Critical (CVSS 10.0): The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a…
• CVE-2015-0339 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
• CVE-2015-0335 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
• CVE-2015-0333 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
• CVE-2014-4121 — Critical (CVSS 10.0): Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2 does not properly parse internationalized…
• CVE-2014-0560 — Critical (CVSS 10.0): Use-after-free vulnerability in Adobe Reader and Acrobat 10.x before 10.1.12 and 11.x before 11.0.09 on Windows and OS…

Browse all CWE-399 (Resource Management Errors) vulnerabilities →