CVE-2018-0591: The KINEPASS App for Android Ver 3.1.1 and earlier, and for iOS Ver 3.1.2 and earlier do not verify X.509 cert

Q: How do I fix CVE-2018-0591?

kinepass: upgrade to newer than 3.1.1; kinepass: upgrade to newer than 3.1.2. Exact commands for each OS are on this page.

Q: Is CVE-2018-0591 being exploited?

CVE-2018-0591 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2018-0591 affect?

CVE-2018-0591 affects kinepass, kinepass. Severity is medium (CVSS 5.9). The KINEPASS App for Android Ver 3.1.1 and earlier, and for iOS Ver 3.1.2 and earlier do not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafte

Q: How urgent is CVE-2018-0591?

Priority 40/100. Remotely exploitable, no login, no user action

This month

MEDIUM 5.9REMOTEUPGRADEUPGRADE

CVE-2018-0591 is a medium-severity flaw (CVSS 5.9) affecting kinepass, kinepass. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The KINEPASS App for Android Ver 3.1.1 and earlier, and for iOS Ver 3.1.2 and earlier do not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.9 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 43%)
CISA exploited list	No
Weakness	CWE-295
Published	2018-05-14
Last modified	2026-06-17

Publisher (CNA): JPCERT/CC · Vendor: t-joy

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

Am I affected?

Timeline

2018-05-14 13:29 UTCPublished CVE record published
2026-06-17 01:31 UTCUpdated Record last modified

t-joy kinepass UPGRADE

Affected: <= 3.1.1

Fixed in: newer than 3.1.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 3.1.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade kinepass

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade kinepass

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

t-joy kinepass UPGRADE

Affected: <= 3.1.2

Fixed in: newer than 3.1.2

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 3.1.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade kinepass

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade kinepass

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2018-0591?

kinepass: upgrade to newer than 3.1.1; kinepass: upgrade to newer than 3.1.2. Exact commands for each OS are on this page.

Is CVE-2018-0591 being exploited?

CVE-2018-0591 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-2018-0591 affect?

CVE-2018-0591 affects kinepass, kinepass. Severity is medium (CVSS 5.9). The KINEPASS App for Android Ver 3.1.1 and earlier, and for iOS Ver 3.1.2 and earlier do not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafte

How urgent is CVE-2018-0591?

Priority 40/100. Remotely exploitable, no login, no user action

Software pages

Android vulnerabilities · iOS vulnerabilities

References

← Back to latest CVEs