CVE-2000-0398: Buffer overflow in wconsole.dll in Rockliffe MailSite Management Agent allows remote attackers to execute arbi

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HIGH 10.0DOWNGRADE

CVE-2000-0398 is a high-severity flaw (CVSS 10.0) affecting mailsite. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in wconsole.dll in Rockliffe MailSite Management Agent allows remote attackers to execute arbitrary commands via a long query_string parameter in the HTTP GET request.

Why this priority

Critical severity

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

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	3.1% (top 12%)
CISA exploited list	No
Published	2000-05-24
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: rockliffe

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

Am I affected?

Timeline

2000-05-24 04:00 UTCPublished CVE record published
2026-06-16 21:51 UTCUpdated Record last modified

rockliffe mailsite DOWNGRADE

Affected: 4.2.10

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.2.10

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 4.2.10 (Debian / Ubuntu)

apt-cache madison mailsite sudo apt install mailsite=<VERSION_BEFORE_4.2.10> sudo apt-mark hold mailsite

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

dnf --showduplicates list mailsite sudo dnf downgrade mailsite-<VERSION_BEFORE_4.2.10> sudo dnf versionlock add mailsite

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-2000-0398?

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

Is CVE-2000-0398 being exploited?

CVE-2000-0398 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-2000-0398 affect?

CVE-2000-0398 affects mailsite. Severity is high (CVSS 10.0). Buffer overflow in wconsole.dll in Rockliffe MailSite Management Agent allows remote attackers to execute arbitrary commands via a long query_string parameter in the HTTP GET request.

How urgent is CVE-2000-0398?

Priority 57/100. Critical severity

Related CVEs

CVE-2009-4483 MEDIUM 5.0 DOWNGRADE Unspecified vulnerability in LDAP3A.exe in MailSite 8.0.4 allows remote attackers to cause a denial of service
CVE-2009-4479 HIGH 7.8 DOWNGRADE LDAP3A.exe in MailSite 8.0.4 allows remote attackers to cause a denial of service (heap memory corruption and
CVE-2006-0790 MEDIUM 5.0 DOWNGRADE Rockliffe MailSite 7.0 and earlier allows remote attackers to cause a denial of service by sending crafted LDA
CVE-2006-0342 HIGH 7.8 DOWNGRADE RockLiffe MailSite HTTP Mail management agent (httpma) 7.0.3.1 allows remote attackers to cause a denial of se
CVE-2006-0341 MEDIUM 4.3 UPGRADE Cross-site scripting (XSS) vulnerability in WCONSOLE.DLL in Rockliffe MailSite 5.x and 6.1.22 and earlier allo

References

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