CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
62.2%
calibre before 5.32.0 contains a regular expression that is vulnerable to
ReDoS (Regular Expression Denial of Service) in html_preprocess_rules in
ebooks/conversion/preprocess.py.
bugs.launchpad.net/calibre/+bug/1951979
github.com/dwisiswant0/advisory/issues/18
github.com/kovidgoyal/calibre/compare/v5.31.1...v5.32.0
launchpad.net/bugs/cve/CVE-2021-44686
nvd.nist.gov/vuln/detail/CVE-2021-44686
security-tracker.debian.org/tracker/CVE-2021-44686
www.cve.org/CVERecord?id=CVE-2021-44686
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
62.2%