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Vulnerability details: VCID-87u9-xmz5-aaac
Vulnerability ID VCID-87u9-xmz5-aaac
Aliases CVE-2021-31855
Summary KDE Messagelib through 5.17.0 reveals cleartext of encrypted messages in some situations. Deleting an attachment of a decrypted encrypted message stored on a remote server (e.g., an IMAP server) causes KMail to upload the decrypted content of the message to the remote server. With a crafted message, a user could be tricked into decrypting an encrypted message and then deleting an attachment attached to this message. If the attacker has access to the messages stored on the email server, then the attacker could read the decrypted content of the encrypted message. This occurs in ViewerPrivate::deleteAttachment in messageviewer/src/viewer/viewer_p.cpp.
Status Published
Exploitability 0.5
Weighted Severity 5.9
Risk 3.0
Affected and Fixed Packages Package Details
Weaknesses (1)
System Score Found at
epss 0.00065 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00065 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00065 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00065 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00065 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00065 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00065 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00065 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00065 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00065 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00065 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00065 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00065 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00065 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
epss 0.00145 https://api.first.org/data/v1/epss?cve=CVE-2021-31855
cvssv2 4.0 https://nvd.nist.gov/vuln/detail/CVE-2021-31855
cvssv3 6.5 https://nvd.nist.gov/vuln/detail/CVE-2021-31855
cvssv3.1 6.5 https://nvd.nist.gov/vuln/detail/CVE-2021-31855
archlinux Low https://security.archlinux.org/AVG-1897
No exploits are available.
Vector: AV:N/AC:L/Au:S/C:P/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-31855
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:L/UI:N/S:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-31855
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:L/PR:L/UI:N/S:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-31855
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 0.29628
EPSS Score 0.00065
Published At Nov. 1, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.