CVE-2014-3494: kio/usernotificationhandler.cpp in the POP3 kioslave in kdelibs 4.10.95 before 4.13.3 does not properly genera

Routine

MEDIUM 4.3MITIGATEDOWNGRADE

CVE-2014-3494 is a medium-severity flaw (CVSS 4.3) affecting opensuse, kdelibs. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

kio/usernotificationhandler.cpp in the POP3 kioslave in kdelibs 4.10.95 before 4.13.3 does not properly generate warning notifications, which allows man-in-the-middle attackers to obtain sensitive information via an invalid certificate.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	0.7% (top 46%)
CISA exploited list	No
Weakness	CWE-200
Published	2014-07-01
Last modified	2026-06-17

Publisher (CNA): Red Hat, Inc. · Vendor: kde · opensuse

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2014-07-01 16:55 UTCPublished CVE record published
2026-06-17 00:08 UTCUpdated Record last modified

opensuse opensuse MITIGATE

Affected: 13.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 13.1

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

kde kdelibs DOWNGRADE

Affected: 4.10.97 · 4.11.0 · 4.11.1 · 4.11.2 · 4.11.3 · 4.11.4 · 4.11.5 · 4.11.80

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.10.97

1. Check installed version

apt-cache policy kdelibs || rpm -q kdelibs || kdelibs --version

2. No fixed release: DOWNGRADE to a release before 4.10.97 (Debian / Ubuntu)

apt-cache madison kdelibs sudo apt install kdelibs=<VERSION_BEFORE_4.10.97> sudo apt-mark hold kdelibs

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list kdelibs sudo dnf downgrade kdelibs-<VERSION_BEFORE_4.10.97> sudo dnf versionlock add kdelibs

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2014-3494?

opensuse: mitigate or apply the listed mitigation; kdelibs: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2014-3494 being exploited?

CVE-2014-3494 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2014-3494 affect?

CVE-2014-3494 affects opensuse, kdelibs. Severity is medium (CVSS 4.3). kio/usernotificationhandler.cpp in the POP3 kioslave in kdelibs 4.10.95 before 4.13.3 does not properly generate warning notifications, which allows man-in-the-middle attackers to obtain sensitive information via an invalid certificate.

How urgent is CVE-2014-3494?

Priority 33/100. Public exploit reference

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References

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