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Vulnerability details: VCID-ehup-vwea-cba8
Vulnerability ID VCID-ehup-vwea-cba8
Aliases CVE-2017-8342
GHSA-rpv4-63g3-9x23
PYSEC-2017-102
Summary Radicale before 1.1.2 and 2.x before 2.0.0rc2 is prone to timing oracles and simple brute-force attacks when using the htpasswd authentication method.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.0041 https://api.first.org/data/v1/epss?cve=CVE-2017-8342
epss 0.0041 https://api.first.org/data/v1/epss?cve=CVE-2017-8342
epss 0.0041 https://api.first.org/data/v1/epss?cve=CVE-2017-8342
epss 0.0041 https://api.first.org/data/v1/epss?cve=CVE-2017-8342
cvssv3.1 8.1 https://bugs.debian.org/861514
generic_textual HIGH https://bugs.debian.org/861514
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-rpv4-63g3-9x23
cvssv3.1 8.1 https://github.com/Kozea/Radicale
generic_textual HIGH https://github.com/Kozea/Radicale
cvssv3.1 8.1 https://github.com/Kozea/Radicale/blob/1.1.2/NEWS.rst
generic_textual HIGH https://github.com/Kozea/Radicale/blob/1.1.2/NEWS.rst
cvssv3.1 8.1 https://github.com/Kozea/Radicale/commit/059ba8dec1f22ccbeab837e288b3833a099cee2d
generic_textual HIGH https://github.com/Kozea/Radicale/commit/059ba8dec1f22ccbeab837e288b3833a099cee2d
cvssv3.1 8.1 https://github.com/Kozea/Radicale/commit/190b1dd795f0c552a4992445a231da760211183b
generic_textual HIGH https://github.com/Kozea/Radicale/commit/190b1dd795f0c552a4992445a231da760211183b
cvssv3.1 8.1 https://github.com/pypa/advisory-database/tree/main/vulns/radicale/PYSEC-2017-102.yaml
generic_textual HIGH https://github.com/pypa/advisory-database/tree/main/vulns/radicale/PYSEC-2017-102.yaml
cvssv3.1 8.1 https://lists.debian.org/debian-lts-announce/2020/04/msg00019.html
generic_textual HIGH https://lists.debian.org/debian-lts-announce/2020/04/msg00019.html
cvssv3.1 8.1 https://nvd.nist.gov/vuln/detail/CVE-2017-8342
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2017-8342
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2017-8342
https://bugs.debian.org/861514
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8342
https://github.com/Kozea/Radicale
https://github.com/Kozea/Radicale/blob/1.1.2/NEWS.rst
https://github.com/Kozea/Radicale/commit/059ba8dec1f22ccbeab837e288b3833a099cee2d
https://github.com/Kozea/Radicale/commit/190b1dd795f0c552a4992445a231da760211183b
https://github.com/pypa/advisory-database/tree/main/vulns/radicale/PYSEC-2017-102.yaml
https://lists.debian.org/debian-lts-announce/2020/04/msg00019.html
https://pypi.org/project/radicale
861514 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=861514
CVE-2017-8342 https://nvd.nist.gov/vuln/detail/CVE-2017-8342
GHSA-rpv4-63g3-9x23 https://github.com/advisories/GHSA-rpv4-63g3-9x23
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://bugs.debian.org/861514
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
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/Kozea/Radicale
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
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/Kozea/Radicale/blob/1.1.2/NEWS.rst
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
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/Kozea/Radicale/commit/059ba8dec1f22ccbeab837e288b3833a099cee2d
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
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/Kozea/Radicale/commit/190b1dd795f0c552a4992445a231da760211183b
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
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/pypa/advisory-database/tree/main/vulns/radicale/PYSEC-2017-102.yaml
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
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://lists.debian.org/debian-lts-announce/2020/04/msg00019.html
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
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2017-8342
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 0.61776
EPSS Score 0.0041
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T20:26:32.523713+00:00 Debian Oval Importer Import https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.6.0