CVE-2002-1891: Buffer overflow in IRCIT 0.3.1 IRC client allows remote attackers to execute arbitrary code via a long invite

This month

HIGH 7.5DOWNGRADE

CVE-2002-1891 is a high-severity flaw (CVSS 7.5) affecting ircit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in IRCIT 0.3.1 IRC client allows remote attackers to execute arbitrary code via a long invite request.

Why this priority

High severity
EPSS top 8%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	5.0% (top 8%)
CISA exploited list	No
Published	2002-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: ayman akt

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

Am I affected?

Timeline

2002-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:00 UTCUpdated Record last modified

ayman akt ircit DOWNGRADE

Affected: 0.3.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.3.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.3.1 (Debian / Ubuntu)

apt-cache madison ircit sudo apt install ircit=<VERSION_BEFORE_0.3.1> sudo apt-mark hold ircit

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

dnf --showduplicates list ircit sudo dnf downgrade ircit-<VERSION_BEFORE_0.3.1> sudo dnf versionlock add ircit

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Ayman Akt IRCIT 0.3.1 - Invite Message Remote Buffer Overflow

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-2002-1891?

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

Is CVE-2002-1891 being exploited?

CVE-2002-1891 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-2002-1891 affect?

CVE-2002-1891 affects ircit. Severity is high (CVSS 7.5). Buffer overflow in IRCIT 0.3.1 IRC client allows remote attackers to execute arbitrary code via a long invite request.

How urgent is CVE-2002-1891?

Priority 54/100. High severity; EPSS top 8%: very likely to be exploited; Public exploit reference

References

← Back to latest CVEs