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CVE-2018-7263

31
FAUCET Score

CVE-2018-7263 is a critical denial-of-service vulnerability affecting Underbit libmad versions up to 0.15.1b, stemming from a double free or corruption in the mad_decoder_run() function. With a CVSS score of 9.8, it presents a severe risk due to its network-exploitable nature, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.15.1bCPE matchmatch criteria
cpe:2.3:a:underbit:libmad:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.48%
Probability of exploitation in next 30 days
EPSS Percentile
82.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0248 is in the 73rd percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (11)

microsoftpatch availablevia msrc
Product: 16984-16823Fixed in: 0.15.1b-30
microsoftpatch availablevia msrc
Product: cbl2 libmad 0.15.1b-30 on CBL Mariner 2.0Fixed in: 0.15.1b-30
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: gstreamer1-0:1.16.1-2.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: gstreamer1-plugins-bad-free-0:1.16.1-1.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: gstreamer1-plugins-base-0:1.16.1-1.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: gstreamer1-plugins-good-0:1.16.1-1.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: gstreamer1-plugins-ugly-free-0:1.16.1-1.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: libmad-0:0.15.1b-25.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: orc-0:0.4.28-3.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: SDL-0:1.2.15-37.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: SDL2-0:2.0.10-2.el8
View patch

Vendor Advisories (2)

redhatCVE-2018-7263Low

libmad: Double-free in the mad_decoder_run() function

Feb 20, 2018
microsoft2018-FEB/CVE-2018-7263Critical

The mad_decoder_run() function in decoder.c in Underbit libmad through 0.15.1b allows remote attackers to cause a denial of service

Feb 13, 2018

References

bugs.debian.org / cgi-bin/bugreport.cgi
Mailing ListThird Party Advisory
bugzilla.suse.com / show_bug.cgi
Issue TrackingThird Party Advisory