CVE-2015-0874: Smartphone Passbook 1.0.0 does not verify X.509 certificates from SSL servers, which allows man-in-the-middle

This month

MEDIUM 5.9REMOTEDOWNGRADE

CVE-2015-0874 is a medium-severity flaw (CVSS 5.9) affecting smart passbook. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Smartphone Passbook 1.0.0 does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to obtain sensitive information from encrypted communications via a crafted certificate.

Why this priority

Remotely exploitable, no login, no user action

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

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 42%)
CISA exploited list	No
Weakness	CWE-295
Published	2017-09-26
Last modified	2026-06-17

Publisher (CNA): JPCERT/CC · Vendor: okb

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

Am I affected?

Timeline

2017-09-26 14:29 UTCPublished CVE record published
2026-06-17 00:21 UTCUpdated Record last modified

okb smart passbook DOWNGRADE

Affected: 1.0.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.0

1. Check installed version

apt-cache policy smart-passbook || rpm -q smart-passbook || smart-passbook --version

2. No fixed release: DOWNGRADE to a release before 1.0.0 (Debian / Ubuntu)

apt-cache madison smart-passbook sudo apt install smart-passbook=<VERSION_BEFORE_1.0.0> sudo apt-mark hold smart-passbook

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

dnf --showduplicates list smart-passbook sudo dnf downgrade smart-passbook-<VERSION_BEFORE_1.0.0> sudo dnf versionlock add smart-passbook

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-2015-0874?

smart passbook: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2015-0874 being exploited?

CVE-2015-0874 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-2015-0874 affect?

CVE-2015-0874 affects smart passbook. Severity is medium (CVSS 5.9). Smartphone Passbook 1.0.0 does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to obtain sensitive information from encrypted communications via a crafted certificate.

How urgent is CVE-2015-0874?

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

References

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