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TI-2016-02391 Aliases CVE-2016-2850GHSA-q2v2-6g2j-qv56

Botan 1.11.x before 1.11.29 does not enforce TLS policy for (1) signature algorithms and…

Priority LOW 37CWE-20Published · Updated

Key facts

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

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

Botan 1.11.x before 1.11.29 does not enforce TLS policy for (1) signature algorithms and (2) ECC curves, which allows remote attackers to conduct downgrade attacks via unspecified vectors.

Why it matters now

EPSS 0.02137 82nd 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 · 30

CPEVersionsRoleVendor
cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:*24VulnerableFedoraproject
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:o:fedoraproject:fedora:24:*:*:*:*:*:*:* Versions 24 Vulnerable ·Fedoraproject
  • 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
Show 20 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:botan_project:botan:1.11.9:*:*:*:*:*:*:*1.11.9Vulnerablerandombit
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:1.11.27:*:*:*:*:*:*:*1.11.27Vulnerablerandombit
cpe:2.3:a:botan_project:botan:1.11.28:*:*:*:*:*:*:*1.11.28Vulnerablerandombit
  • cpe:2.3:a:botan_project:botan:1.11.9:*:*:*:*:*:*:* Versions 1.11.9 Vulnerable ·randombit
  • 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
  • cpe:2.3:a:botan_project:botan:1.11.27:*:*:*:*:*:*:* Versions 1.11.27 Vulnerable ·randombit
  • cpe:2.3:a:botan_project:botan:1.11.28:*:*:*:*:*:*:* Versions 1.11.28 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-2016-2850
  2. 2026-10-03 Alias added: GHSA-q2v2-6g2j-qv56

References

Advisory 4

Sources

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