CVE-2001-0315: The locking feature in mIRC 5.7 allows local users to bypass the password mechanism by modifying the LockOptio

Q: How do I fix CVE-2001-0315?

mirc: upgrade to newer than 5.7. Exact commands for each OS are on this page.

Q: Is CVE-2001-0315 being exploited?

CVE-2001-0315 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-2001-0315 affect?

CVE-2001-0315 affects mirc. Severity is high (CVSS 7.5). The locking feature in mIRC 5.7 allows local users to bypass the password mechanism by modifying the LockOptions registry key.

This month

HIGH 7.5UPGRADE

CVE-2001-0315 is a high-severity flaw (CVSS 7.5) affecting mirc. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The locking feature in mIRC 5.7 allows local users to bypass the password mechanism by modifying the LockOptions registry key.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.1% (top 34%)
CISA exploited list	No
Published	2001-06-02
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: khaled mardam-bey

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

Am I affected?

Timeline

2001-06-02 04:00 UTCPublished CVE record published
2026-06-16 21:54 UTCUpdated Record last modified

khaled mardam-bey mirc UPGRADE

Affected: <= 5.7

Fixed in: newer than 5.7

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 5.7 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade mirc

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-2001-0315?

mirc: upgrade to newer than 5.7. Exact commands for each OS are on this page.

Is CVE-2001-0315 being exploited?

CVE-2001-0315 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-2001-0315 affect?

CVE-2001-0315 affects mirc. Severity is high (CVSS 7.5). The locking feature in mIRC 5.7 allows local users to bypass the password mechanism by modifying the LockOptions registry key.

How urgent is CVE-2001-0315?

Priority 43/100. High severity

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References

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