Is CVE-2016-2849 actively exploited?

CVE-2016-2849 has no public evidence of in-the-wild exploitation as of 2025-04-12.

What is the CVSS score for CVE-2016-2849?

CVE-2016-2849 has a CVSS score of 7.5 (HIGH severity). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

How do I patch CVE-2016-2849?

Patch guidance is available from debian security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2016-2849.

Fix CVE-2016-2849 - HIGH debian debian linux

Q: Which products are affected by CVE-2016-2849?

32 products: debian debian linux, fedoraproject fedora, botan project botan, botan project botan, botan project botan, and 27 more.

Description

Botan before 1.10.13 and 1.11.x before 1.11.29 do not use a constant-time algorithm to perform a modular inverse on the signature nonce k, which might allow remote attackers to obtain ECDSA secret keys via a timing side-channel attack.

CVSS Metrics

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: none
Availability: none
Weaknesses: CWE-200 · Information Disclosure

Metadata

Primary Vendor: DEBIAN
Published: 5/13/2016
Last Modified: 4/12/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

debian : debian_linuxfedoraproject : fedorabotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botanbotan_project : botan

Remediation Guidance

Executive Summary

View on NIST NVD