CVE-2019-19010: Eval injection in the Math plugin of Limnoria (before 2019.11.09) and Supybot (through 2018-05-09) allows remo

Q: How do I fix CVE-2019-19010?

limnoria: upgrade to 2019.11.09; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2019-19010 being exploited?

CVE-2019-19010 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-2019-19010 affect?

CVE-2019-19010 affects limnoria, fedora. Severity is critical (CVSS 9.8). Eval injection in the Math plugin of Limnoria (before 2019.11.09) and Supybot (through 2018-05-09) allows remote unprivileged attackers to disclose information or possibly have unspecified other impact via the calc and icalc IRC commands.

Q: How urgent is CVE-2019-19010?

Priority 60/100. Critical severity; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADEMITIGATE

CVE-2019-19010 is a critical-severity flaw (CVSS 9.8) affecting limnoria, fedora. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Eval injection in the Math plugin of Limnoria (before 2019.11.09) and Supybot (through 2018-05-09) allows remote unprivileged attackers to disclose information or possibly have unspecified other impact via the calc and icalc IRC commands.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.3% (top 17%)
CISA exploited list	No
Weakness	CWE-94
Published	2019-11-16
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: fedoraproject · limnoria project

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

Am I affected?

Timeline

2019-11-16 01:15 UTCPublished CVE record published
2026-06-17 02:25 UTCUpdated Record last modified

limnoria project limnoria UPGRADE

Affected: < 2019.11.09

Fixed in: 2019.11.09

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 2019.11.09 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade limnoria

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

fedoraproject fedora MITIGATE

Affected: 29 · 30 · 31

Fixed in: no fixed release known

Safe to downgrade to: a release before 29

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2019-19010?

limnoria: upgrade to 2019.11.09; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-19010 being exploited?

CVE-2019-19010 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-2019-19010 affect?

CVE-2019-19010 affects limnoria, fedora. Severity is critical (CVSS 9.8). Eval injection in the Math plugin of Limnoria (before 2019.11.09) and Supybot (through 2018-05-09) allows remote unprivileged attackers to disclose information or possibly have unspecified other impact via the calc and icalc IRC commands.

How urgent is CVE-2019-19010?

Priority 60/100. Critical severity; Remotely exploitable, no login, no user action

References

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