CVE-2012-4688: The Central application in i-GEN opLYNX before 2.01.9 allows remote attackers to bypass authentication via vec

Q: How do I fix CVE-2012-4688?

oplynx: upgrade to newer than 2.01.8. Exact commands for each OS are on this page.

Q: Is CVE-2012-4688 being exploited?

CVE-2012-4688 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-2012-4688 affect?

CVE-2012-4688 affects oplynx. Severity is high (CVSS 7.5). The Central application in i-GEN opLYNX before 2.01.9 allows remote attackers to bypass authentication via vectors involving the disabling of browser JavaScript support.

This month

HIGH 7.5UPGRADE

CVE-2012-4688 is a high-severity flaw (CVSS 7.5) affecting oplynx. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Central application in i-GEN opLYNX before 2.01.9 allows remote attackers to bypass authentication via vectors involving the disabling of browser JavaScript support.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-592, CWE-287
Published	2012-12-31
Last modified	2026-06-16

Publisher (CNA): ICS-CERT · Vendor: i-gen

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2012-12-31 11:50 UTCPublished CVE record published
2026-06-16 23:45 UTCUpdated Record last modified

i-gen oplynx UPGRADE

Affected: <= 2.01.8

Fixed in: newer than 2.01.8

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2.01.8 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade oplynx

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-2012-4688?

oplynx: upgrade to newer than 2.01.8. Exact commands for each OS are on this page.

Is CVE-2012-4688 being exploited?

CVE-2012-4688 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-2012-4688 affect?

CVE-2012-4688 affects oplynx. Severity is high (CVSS 7.5). The Central application in i-GEN opLYNX before 2.01.9 allows remote attackers to bypass authentication via vectors involving the disabling of browser JavaScript support.

How urgent is CVE-2012-4688?

Priority 45/100. High severity

References

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