How severe is CVE-2018-7263?

CVE-2018-7263 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-7263 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-7263?

CVE-2018-7263 affects Underbit Libmad. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-7263?

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

When was CVE-2018-7263 published?

CVE-2018-7263 was published on 2018-02-20 and last updated on 2026-06-17.

CVE-2018-7263

CVE-2018-7263 is a critical-severity vulnerability in Underbit Libmad with a CVSS 3.x base score of 9.8. 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-415.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 6.8
EPSS exploit prediction: 2% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-415
Affected product: Underbit Libmad
Published: 2018-02-20
Last modified: 2026-06-17

Description

The mad_decoder_run() function in decoder.c in Underbit libmad through 0.15.1b allows remote attackers to cause a denial of service (SIGABRT because of double free or corruption) or possibly have unspecified other impact via a crafted file. NOTE: this may overlap CVE-2017-11552.

Frequently asked questions

What is CVE-2018-7263?: The mad_decoder_run() function in decoder.c in Underbit libmad through 0.15.1b allows remote attackers to cause a denial of service (SIGABRT because of double free or corruption) or possibly have unspecified other impact via a crafted file. NOTE: this may overlap CVE-2017-11552.
How severe is CVE-2018-7263?: CVE-2018-7263 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-7263 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-7263?: CVE-2018-7263 affects Underbit Libmad. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-7263?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-7263 published?: CVE-2018-7263 was published on 2018-02-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:underbit:libmad:*:*:*:*:*:*:*:*

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