CVE-2014-5138: Innovative Interfaces Sierra Library Services Platform 1.2_3 does not properly handle query strings with multi

This month

HIGH 7.5REMOTEDOWNGRADE

CVE-2014-5138 is a high-severity flaw (CVSS 7.5) affecting sierra. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Innovative Interfaces Sierra Library Services Platform 1.2_3 does not properly handle query strings with multiple instances of the same parameter, which allows remote attackers to bypass parameter validation via unspecified vectors, possibly related to the Webpac Pro submodule.

Why this priority

High severity
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Published	2020-01-14
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: iii

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

Am I affected?

Timeline

2020-01-14 16:15 UTCPublished CVE record published
2026-06-17 00:11 UTCUpdated Record last modified

iii sierra DOWNGRADE

Affected: 1.2_3

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2_3

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.2_3 (Debian / Ubuntu)

apt-cache madison sierra sudo apt install sierra=<VERSION_BEFORE_1.2_3> sudo apt-mark hold sierra

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

dnf --showduplicates list sierra sudo dnf downgrade sierra-<VERSION_BEFORE_1.2_3> sudo dnf versionlock add sierra

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-2014-5138?

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

Is CVE-2014-5138 being exploited?

CVE-2014-5138 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-2014-5138 affect?

CVE-2014-5138 affects sierra. Severity is high (CVSS 7.5). Innovative Interfaces Sierra Library Services Platform 1.2_3 does not properly handle query strings with multiple instances of the same parameter, which allows remote attackers to bypass parameter validation via unspecified vectors, possibl

How urgent is CVE-2014-5138?

Priority 50/100. High severity; Remotely exploitable, no login, no user action

References

← Back to latest CVEs