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TI-2016-02005 Aliases CVE-2016-2196GHSA-6vrf-cpx2-322q

Heap-based buffer overflow in the P-521 reduction function in Botan 1.11.x before 1.11.27…

Priority MEDIUM 50CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

Heap-based buffer overflow in the P-521 reduction function in Botan 1.11.x before 1.11.27 allows remote attackers to cause a denial of service (memory overwrite and crash) or execute arbitrary code via unspecified vectors.

Why it matters now

EPSS 0.05384 92nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 27

CPEVersionsRoleVendor
cpe:2.3:a:botan_project:botan:1.11.0:*:*:*:*:*:*:*1.11.0Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.1:*:*:*:*:*:*:*1.11.1Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.2:*:*:*:*:*:*:*1.11.2Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.3:*:*:*:*:*:*:*1.11.3Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.4:*:*:*:*:*:*:*1.11.4Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.5:*:*:*:*:*:*:*1.11.5Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.6:*:*:*:*:*:*:*1.11.6Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.7:*:*:*:*:*:*:*1.11.7Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.8:*:*:*:*:*:*:*1.11.8Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.9:*:*:*:*:*:*:*1.11.9Vulnerablerandombit
  • cpe:2.3:a:botan_project:botan:1.11.0:*:*:*:*:*:*:* Versions 1.11.0 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.1:*:*:*:*:*:*:* Versions 1.11.1 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.2:*:*:*:*:*:*:* Versions 1.11.2 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.3:*:*:*:*:*:*:* Versions 1.11.3 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.4:*:*:*:*:*:*:* Versions 1.11.4 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.5:*:*:*:*:*:*:* Versions 1.11.5 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.6:*:*:*:*:*:*:* Versions 1.11.6 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.7:*:*:*:*:*:*:* Versions 1.11.7 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.8:*:*:*:*:*:*:* Versions 1.11.8 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.9:*:*:*:*:*:*:* Versions 1.11.9 Vulnerable ·randombit
Show 17 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:botan_project:botan:1.11.10:*:*:*:*:*:*:*1.11.10Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.11:*:*:*:*:*:*:*1.11.11Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.12:*:*:*:*:*:*:*1.11.12Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.13:*:*:*:*:*:*:*1.11.13Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.14:*:*:*:*:*:*:*1.11.14Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.15:*:*:*:*:*:*:*1.11.15Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.16:*:*:*:*:*:*:*1.11.16Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.17:*:*:*:*:*:*:*1.11.17Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.18:*:*:*:*:*:*:*1.11.18Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.19:*:*:*:*:*:*:*1.11.19Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.20:*:*:*:*:*:*:*1.11.20Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.21:*:*:*:*:*:*:*1.11.21Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.22:*:*:*:*:*:*:*1.11.22Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.23:*:*:*:*:*:*:*1.11.23Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.24:*:*:*:*:*:*:*1.11.24Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.25:*:*:*:*:*:*:*1.11.25Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.26:*:*:*:*:*:*:*1.11.26Vulnerablerandombit
  • cpe:2.3:a:botan_project:botan:1.11.10:*:*:*:*:*:*:* Versions 1.11.10 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.11:*:*:*:*:*:*:* Versions 1.11.11 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.12:*:*:*:*:*:*:* Versions 1.11.12 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.13:*:*:*:*:*:*:* Versions 1.11.13 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.14:*:*:*:*:*:*:* Versions 1.11.14 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.15:*:*:*:*:*:*:* Versions 1.11.15 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.16:*:*:*:*:*:*:* Versions 1.11.16 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.17:*:*:*:*:*:*:* Versions 1.11.17 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.18:*:*:*:*:*:*:* Versions 1.11.18 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.19:*:*:*:*:*:*:* Versions 1.11.19 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.20:*:*:*:*:*:*:* Versions 1.11.20 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.21:*:*:*:*:*:*:* Versions 1.11.21 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.22:*:*:*:*:*:*:* Versions 1.11.22 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.23:*:*:*:*:*:*:* Versions 1.11.23 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.24:*:*:*:*:*:*:* Versions 1.11.24 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.25:*:*:*:*:*:*:* Versions 1.11.25 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.26:*:*:*:*:*:*:* Versions 1.11.26 Vulnerable ·randombit

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-2196
  2. 2026-10-03 Alias added: GHSA-6vrf-cpx2-322q

References

Advisory 2

  • TI-2024-33818 Botan before 3.6.0, when certain GCC versions are used, has a compiler-induced… CVSS 3.1MEDIUM 5.9
  • TI-2024-33817 Botan before 3.6.0, when certain LLVM versions are used, has compiler-induced… CVSS 3.1MEDIUM 5.9
  • TI-2016-02004 Integer overflow in the PointGFp constructor in Botan before 1.10.11 and 1.11.x before… CVSS 3.0CRITICAL 9.8
  • TI-2026-26828 Botan has a certificate authentication bypass due to trust anchor confusion CVSS 4.0CRITICAL 9.3
  • TI-2016-07479 In Botan 1.8.0 through 1.11.33, when decoding BER data an integer overflow could occur… CVSS 3.0CRITICAL 9.8
  • TI-2021-06410 In Botan before 2.17.3, constant-time computations are not used for certain decoding and… CVSS 3.1CRITICAL 9.8
See all 34 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences