How severe is CVE-2014-2744?

CVE-2014-2744 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2014-2744 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-2744?

CVE-2014-2744 primarily affects Lightwitch Metronome. In total, 21 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-2744?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2014-2744 published?

CVE-2014-2744 was published on 2014-04-11 and last updated on 2026-06-17.

CVE-2014-2744

CVE-2014-2744 is a high-severity vulnerability in Lightwitch Metronome with a CVSS 2.0 base score of 7.8. 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-20.

Key facts

Severity: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Lightwitch Metronome
Published: 2014-04-11
Last modified: 2026-06-17

Description

plugins/mod_compression.lua in (1) Prosody before 0.9.4 and (2) Lightwitch Metronome through 3.4 negotiates stream compression while a session is unauthenticated, which allows remote attackers to cause a denial of service (resource consumption) via compressed XML elements in an XMPP stream, aka an "xmppbomb" attack.

Frequently asked questions

What is CVE-2014-2744?: plugins/mod_compression.lua in (1) Prosody before 0.9.4 and (2) Lightwitch Metronome through 3.4 negotiates stream compression while a session is unauthenticated, which allows remote attackers to cause a denial of service (resource consumption) via compressed XML elements in an XMPP stream, aka an "xmppbomb" attack.
How severe is CVE-2014-2744?: CVE-2014-2744 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2014-2744 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-2744?: CVE-2014-2744 primarily affects Lightwitch Metronome. In total, 21 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-2744?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2014-2744 published?: CVE-2014-2744 was published on 2014-04-11 and last updated on 2026-06-17.

References

Affected products (21)

cpe:2.3:a:lightwitch:metronome:*:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:*:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.1.0:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.2.0:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.3.0:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.4.0:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.4.1:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.4.2:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.5.0:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.5.1:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.5.2:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.6.0:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.6.1:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.6.2:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.7.0:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.8.0:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.8.1:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.8.2:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.9.0:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.9.1:*:*:*:*:*:*:*
cpe:2.3:a:prosody:prosody:0.9.2:*:*:*:*:*:*:*

More vulnerabilities in Lightwitch Metronome

CVE-2014-2743 — High (CVSS 7.8): plugins/mod_compression.lua in Lightwitch Metronome through 3.4 does not properly restrict the processing of compressed…

All CVEs affecting Lightwitch Metronome →

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →