CVE-2010-2488: NULL pointer dereference vulnerability in ZNC before 0.092 caused by traffic stats when there are unauthentica

Q: How do I fix CVE-2010-2488?

znc: upgrade to 0.092. Exact commands for each OS are on this page.

Q: Is CVE-2010-2488 being exploited?

CVE-2010-2488 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-2010-2488 affect?

CVE-2010-2488 affects znc. Severity is high (CVSS 7.5). NULL pointer dereference vulnerability in ZNC before 0.092 caused by traffic stats when there are unauthenticated connections.

Q: How urgent is CVE-2010-2488?

Priority 57/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 7.5REMOTEUPGRADE

CVE-2010-2488 is a high-severity flaw (CVSS 7.5) affecting znc. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

NULL pointer dereference vulnerability in ZNC before 0.092 caused by traffic stats when there are unauthenticated connections.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.4% (top 16%)
CISA exploited list	No
Weakness	CWE-476
Published	2019-11-12
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: znc

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

Am I affected?

Timeline

2019-11-12 20:15 UTCPublished CVE record published
2026-06-16 23:20 UTCUpdated Record last modified

znc znc UPGRADE

Affected: < 0.092

Fixed in: 0.092

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 0.092 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade znc

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-2010-2488?

znc: upgrade to 0.092. Exact commands for each OS are on this page.

Is CVE-2010-2488 being exploited?

CVE-2010-2488 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-2010-2488 affect?

CVE-2010-2488 affects znc. Severity is high (CVSS 7.5). NULL pointer dereference vulnerability in ZNC before 0.092 caused by traffic stats when there are unauthenticated connections.

How urgent is CVE-2010-2488?

Priority 57/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

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References

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