CVE-2016-2849

mediumpriority · track · 31EPSS 0.028 · 86 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.81% (86th) EPSS

CVSS 5 · medium

Is it mine?

33 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

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

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.06.9mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-200USprimary

affected products (33)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
botan project botan= 1.10.12nvdUScpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:*
botan project botan= 1.11.0nvdUScpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:*
botan project botan= 1.11.1nvdUScpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:*
botan project botan= 1.11.10nvdUScpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:*
botan project botan= 1.11.11nvdUScpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:*
botan project botan= 1.11.12nvdUScpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:*
botan project botan= 1.11.13nvdUScpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:*
botan project botan= 1.11.14nvdUScpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:*
botan project botan= 1.11.15nvdUScpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:*
botan project botan= 1.11.16nvdUScpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:*
botan project botan= 1.11.17nvdUScpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:*
botan project botan= 1.11.18nvdUScpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:*
botan project botan= 1.11.19nvdUScpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:*
botan project botan= 1.11.2nvdUScpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:*
botan project botan= 1.11.20nvdUScpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:*
botan project botan= 1.11.21nvdUScpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:*
botan project botan= 1.11.22nvdUScpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:*
botan project botan= 1.11.23nvdUScpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:*
botan project botan= 1.11.24nvdUScpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:*

showing 20 of 33

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2016-05-13modified 2026-06-17

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references (14)

External citations — patches, advisories, analysis.

scry

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