CVE-2013-4258: Format string vulnerability in the osLogMsg function in server/os/aulog.c in Network Audio System (NAS) 1.9.3

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HIGH 7.5DOWNGRADE

CVE-2013-4258 is a high-severity flaw (CVSS 7.5) affecting network audio system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Format string vulnerability in the osLogMsg function in server/os/aulog.c in Network Audio System (NAS) 1.9.3 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via format string specifiers in unspecified vectors, related to syslog.

Why this priority

High severity
EPSS top 9%: very likely to be exploited
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	4.1% (top 9%)
CISA exploited list	No
Weakness	CWE-134
Published	2013-10-09
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: radscan

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2013-10-09 14:54 UTCPublished CVE record published
2026-06-16 23:56 UTCUpdated Record last modified

radscan network audio system DOWNGRADE

Affected: 1.9.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.9.3

1. Check installed version

apt-cache policy network-audio-system || rpm -q network-audio-system || network-audio-system --version

2. No fixed release: DOWNGRADE to a release before 1.9.3 (Debian / Ubuntu)

apt-cache madison network-audio-system sudo apt install network-audio-system=<VERSION_BEFORE_1.9.3> sudo apt-mark hold network-audio-system

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list network-audio-system sudo dnf downgrade network-audio-system-<VERSION_BEFORE_1.9.3> sudo dnf versionlock add network-audio-system

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2013-4258?

network audio system: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2013-4258 being exploited?

CVE-2013-4258 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-2013-4258 affect?

CVE-2013-4258 affects network audio system. Severity is high (CVSS 7.5). Format string vulnerability in the osLogMsg function in server/os/aulog.c in Network Audio System (NAS) 1.9.3 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via format string specifiers in u

How urgent is CVE-2013-4258?

Priority 54/100. High severity; EPSS top 9%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2013-4256 MEDIUM 4.6 MITIGATE DOWNGRADE Multiple stack-based and heap-based buffer overflows in Network Audio System (NAS) 1.9.3 allow local users to

References

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