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No exploitation reportedFix available

CVE-2019-10732

No exploitation reported by the sources we read.

  • Published2019-04-07
  • WeaknessCWE-319

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

In KDE KMail 5.2.3, an attacker in possession of S/MIME or PGP encrypted emails can wrap them as sub-parts within a crafted multipart email. The encrypted part(s) can further be hidden using HTML/CSS or ASCII newline characters. This modified multipart email can be re-sent by the attacker to the intended receiver. If the receiver replies to this (benign looking) email, they unknowingly leak the plaintext of the encrypted message part(s) back to the attacker.

Timeline

dates in UTC
  1. 2019-04-0715:29CVE publishedNVD

Versions per branch

NVD
Debian debian linux
BranchAffectedFixed in
8.0= 8.0no fix published
Kde kmail
BranchAffectedFixed in
5.2= 5.2.3no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • kdepimUbuntu:Pro:16.04:LTSall versions · fixed in 4:15.12.3-0ubuntu1.1+esm1
  • kdepimUbuntu:Pro:14.04:LTSall versions · fixed in 4:4.13.3-0ubuntu0.2+esm1
  • kdepimDebian:8all versions · fixed in 4:4.14.1-1+deb8u2
  • kf5-messagelibUbuntu:Pro:18.04:LTSall versions · fixed in 4:17.12.3-0ubuntu3+esm1
  • kf5-messagelibDebian:12all versions · fixed in 4:19.08.3-1
  • messagelibSUSE:Package Hub 15 SP1all versions · fixed in 18.12.3-bp151.3.3.1
  • messagelibopenSUSE:Tumbleweedall versions · fixed in 21.08.1-1.2
  • messagelibopenSUSE:Leap 15.1all versions · fixed in 18.12.3-lp151.2.4.1

1 more package range on OSV.dev

Vendor advisories

  • CVE-2019-10732 Red Hat Product Security

    kmail: decryption based on replying to PGP or S/MIME encrypted emails

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Published
2019-04-07
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-87wx-cphx-3wgj

Frequently asked questions

What is CVE-2019-10732?

In KDE KMail 5.2.3, an attacker in possession of S/MIME or PGP encrypted emails can wrap them as sub-parts within a crafted multipart email. The encrypted part(s) can further be hidden using HTML/CSS or ASCII newline characters. This modified multipart email can be re-sent by the attacker to the intended receiver. If the receiver replies to this (benign looking) email, they unknowingly leak the plaintext of the encrypted message part(s) back to the attacker.

Is CVE-2019-10732 actively exploited?

Active exploitation of CVE-2019-10732 has not been confirmed. Its EPSS score was 0.7% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-10732?

CVE-2019-10732 has a CVSS v3 base score of 4.3 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

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