CVE-2015-3026: Icecast before 2.4.2, when a stream_auth handler is defined for URL authentication, allows remote attackers to

Q: How do I fix CVE-2015-3026?

icecast: upgrade to newer than 2.4.1; debian linux: mitigate or apply the listed mitigation; opensuse: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2015-3026 being exploited?

CVE-2015-3026 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-2015-3026 affect?

CVE-2015-3026 affects icecast, debian linux, opensuse. Severity is medium (CVSS 5.0). Icecast before 2.4.2, when a stream_auth handler is defined for URL authentication, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a request without login credentials, as demonstrated by a requ

Q: How urgent is CVE-2015-3026?

Priority 50/100. EPSS top 9%: very likely to be exploited; Public exploit reference; On your watchlist

This month

MEDIUM 5.0WATCHLISTUPGRADEMITIGATEMITIGATE

CVE-2015-3026 is a medium-severity flaw (CVSS 5.0) affecting icecast, debian linux, opensuse. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Icecast before 2.4.2, when a stream_auth handler is defined for URL authentication, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a request without login credentials, as demonstrated by a request to "admin/killsource?mount=/test.ogg."

Why this priority

EPSS top 9%: very likely to be exploited
Public exploit reference
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	4.3% (top 9%)
CISA exploited list	No
Published	2015-04-29
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: debian · opensuse · xiph

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2015-04-29 20:59 UTCPublished CVE record published
2026-06-17 00:25 UTCUpdated Record last modified

xiph icecast UPGRADE

Affected: <= 2.4.1

Fixed in: newer than 2.4.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2.4.1 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade icecast

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

debian debian linux MITIGATE

Affected: 8.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

opensuse opensuse MITIGATE

Affected: 13.1 · 13.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 13.1

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2015-3026?

icecast: upgrade to newer than 2.4.1; debian linux: mitigate or apply the listed mitigation; opensuse: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2015-3026 being exploited?

CVE-2015-3026 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-2015-3026 affect?

CVE-2015-3026 affects icecast, debian linux, opensuse. Severity is medium (CVSS 5.0). Icecast before 2.4.2, when a stream_auth handler is defined for URL authentication, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a request without login credentials, as demonstrated by a requ

How urgent is CVE-2015-3026?

Priority 50/100. EPSS top 9%: very likely to be exploited; Public exploit reference; On your watchlist

Software pages

Debian vulnerabilities

Related CVEs

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CVE-2014-9018 MEDIUM 5.0 UPGRADE Icecast before 2.4.1 transmits the output of the on-connect script, which might allow remote attackers to obta
CVE-2011-4612 MEDIUM 5.0 UPGRADE icecast before 2.3.3 allows remote attackers to inject control characters such as newlines into the error loc

References

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