CVE-2014-1916: The (1) opus_packet_get_nb_frames and (2) opus_packet_get_samples_per_frame functions in the client in MumbleK

Routine

MEDIUM 5.0DOWNGRADEMITIGATE

CVE-2014-1916 is a medium-severity flaw (CVSS 5.0) affecting mumble, mumblekit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The (1) opus_packet_get_nb_frames and (2) opus_packet_get_samples_per_frame functions in the client in MumbleKit before commit fd190328a9b24d37382b269a5674b0c0c7a7e36d and Mumble for iOS 1.1 through 1.2.2 do not properly check the return value of the copyDataBlock method, which allow remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted length prefix value in an Opus voice packet.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.7% (top 22%)
CISA exploited list	No
Weakness	CWE-399
Published	2014-02-08
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: light speed gaming

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

Am I affected?

Timeline

2014-02-08 00:55 UTCPublished CVE record published
2026-06-17 00:05 UTCUpdated Record last modified

light speed gaming mumble DOWNGRADE

Affected: 1.1 · 1.1 rc1 · 1.1.1 · 1.2 · 1.2.1 · 1.2.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.1 (Debian / Ubuntu)

apt-cache madison mumble sudo apt install mumble=<VERSION_BEFORE_1.1> sudo apt-mark hold mumble

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

dnf --showduplicates list mumble sudo dnf downgrade mumble-<VERSION_BEFORE_1.1> sudo dnf versionlock add mumble

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.

light speed gaming mumblekit MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

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

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2014-1916?

mumble: downgrade or apply the listed mitigation; mumblekit: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2014-1916 being exploited?

CVE-2014-1916 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-2014-1916 affect?

CVE-2014-1916 affects mumble, mumblekit. Severity is medium (CVSS 5.0). The (1) opus_packet_get_nb_frames and (2) opus_packet_get_samples_per_frame functions in the client in MumbleKit before commit fd190328a9b24d37382b269a5674b0c0c7a7e36d and Mumble for iOS 1.1 through 1.2.2 do not properly check the return va

How urgent is CVE-2014-1916?

Priority 37/100. No elevated risk signals yet.

Software pages

iOS vulnerabilities

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References

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