CVE-2020-15954 Weak cryptography in n/a

What is CVE-2020-15954?

CVE-2020-15954 is a medium-severity vulnerability in Debian Debian Linux, published on 27 Jul 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

KDE KMail 19.12.3 (aka 5.13.3) engages in unencrypted POP3 communication during times when the UI indicates that encryption is in use.

Weakness: CWE-319

Which versions are affected by CVE-2020-15954?

It affects 2 products.

Products include Debian Debian Linux, Kde Kmail.

How do I fix CVE-2020-15954?

Apply the vendor's patch.

Is CVE-2020-15954 being exploited?

There is no known exploitation of CVE-2020-15954 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2020-15954, DLA-2300-1, GHSA-92g9-cf99-2j4r, MGASA-2020-0346, UBUNTU-CVE-2020-15954.