How severe is CVE-2015-2778?

CVE-2015-2778 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2015-2778 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-2778?

CVE-2015-2778 affects Quassel-irc Quassel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-2778?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2015-2778 published?

CVE-2015-2778 was published on 2015-04-10 and last updated on 2026-06-17.

CVE-2015-2778

CVE-2015-2778 is a medium-severity vulnerability in Quassel-irc Quassel with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-399.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Quassel-irc Quassel
Published: 2015-04-10
Last modified: 2026-06-17

Description

Quassel before 0.12-rc1 uses an incorrect data-type size when splitting a message, which allows remote attackers to cause a denial of service (crash) via a long CTCP query containing only multibyte characters.

Frequently asked questions

What is CVE-2015-2778?: Quassel before 0.12-rc1 uses an incorrect data-type size when splitting a message, which allows remote attackers to cause a denial of service (crash) via a long CTCP query containing only multibyte characters.
How severe is CVE-2015-2778?: CVE-2015-2778 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2015-2778 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-2778?: CVE-2015-2778 affects Quassel-irc Quassel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-2778?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-2778 published?: CVE-2015-2778 was published on 2015-04-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:quassel-irc:quassel:*:*:*:*:*:*:*:*

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