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Vulnerability details: VCID-dzz1-fqru-8yfm
Vulnerability ID VCID-dzz1-fqru-8yfm
Aliases CVE-2019-12953
Summary Dropbear 2011.54 through 2018.76 has an inconsistent failure delay that may lead to revealing valid usernames, a different issue than CVE-2018-15599.
Status Published
Exploitability 0.5
Weighted Severity 4.8
Risk 2.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-203 Observable Discrepancy
System Score Found at
epss 0.00252 https://api.first.org/data/v1/epss?cve=CVE-2019-12953
epss 0.00252 https://api.first.org/data/v1/epss?cve=CVE-2019-12953
epss 0.00672 https://api.first.org/data/v1/epss?cve=CVE-2019-12953
epss 0.00672 https://api.first.org/data/v1/epss?cve=CVE-2019-12953
epss 0.00672 https://api.first.org/data/v1/epss?cve=CVE-2019-12953
epss 0.00672 https://api.first.org/data/v1/epss?cve=CVE-2019-12953
epss 0.00672 https://api.first.org/data/v1/epss?cve=CVE-2019-12953
epss 0.00672 https://api.first.org/data/v1/epss?cve=CVE-2019-12953
epss 0.00672 https://api.first.org/data/v1/epss?cve=CVE-2019-12953
epss 0.00672 https://api.first.org/data/v1/epss?cve=CVE-2019-12953
epss 0.00672 https://api.first.org/data/v1/epss?cve=CVE-2019-12953
epss 0.00672 https://api.first.org/data/v1/epss?cve=CVE-2019-12953
epss 0.00672 https://api.first.org/data/v1/epss?cve=CVE-2019-12953
epss 0.00672 https://api.first.org/data/v1/epss?cve=CVE-2019-12953
epss 0.00672 https://api.first.org/data/v1/epss?cve=CVE-2019-12953
epss 0.00672 https://api.first.org/data/v1/epss?cve=CVE-2019-12953
epss 0.00672 https://api.first.org/data/v1/epss?cve=CVE-2019-12953
epss 0.00672 https://api.first.org/data/v1/epss?cve=CVE-2019-12953
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2019-12953
cvssv3.1 5.3 https://nvd.nist.gov/vuln/detail/CVE-2019-12953
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2019-12953
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12953
https://matt.ucc.asn.au/dropbear/CHANGES
1009062 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1009062
cpe:2.3:a:dropbear_ssh_project:dropbear_ssh:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:dropbear_ssh_project:dropbear_ssh:*:*:*:*:*:*:*:*
CVE-2019-12953 https://nvd.nist.gov/vuln/detail/CVE-2019-12953
No exploits are available.
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2019-12953
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2019-12953
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.48437
EPSS Score 0.00252
Published At Aug. 16, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T10:13:58.869464+00:00 NVD Importer Import https://nvd.nist.gov/vuln/detail/CVE-2019-12953 37.0.0