CVE-2024-49777: A heap-based buffer overflow in tsMuxer version nightly-2024-03-14-01-51-12 allows attackers to cause Denial o

This month

HIGH 8.8DOWNGRADE

CVE-2024-49777 is a high-severity flaw (CVSS 8.8) affecting tsmuxer. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A heap-based buffer overflow in tsMuxer version nightly-2024-03-14-01-51-12 allows attackers to cause Denial of Service (DoS), Information Disclosure and Code Execution via a crafted MKV video file.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.7% (top 47%)
CISA exploited list	No
Weakness	CWE-120
Published	2024-11-14
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: justdan96

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

Am I affected?

Timeline

2024-11-14 23:15 UTCPublished CVE record published
2026-06-17 08:00 UTCUpdated Record last modified

justdan96 tsmuxer DOWNGRADE

Affected: nightly-2024-03-14-01-51-12

Fixed in: no fixed release known

Safe to downgrade to: a release before nightly-2024-03-14-01-51-12

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before nightly-2024-03-14-01-51-12 (Debian / Ubuntu)

apt-cache madison tsmuxer sudo apt install tsmuxer=<VERSION_BEFORE_nightly-2024-03-14-01-51-12> sudo apt-mark hold tsmuxer

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

dnf --showduplicates list tsmuxer sudo dnf downgrade tsmuxer-<VERSION_BEFORE_nightly-2024-03-14-01-51-12> sudo dnf versionlock add tsmuxer

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-2024-49777?

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

Is CVE-2024-49777 being exploited?

CVE-2024-49777 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-2024-49777 affect?

CVE-2024-49777 affects tsmuxer. Severity is high (CVSS 8.8). A heap-based buffer overflow in tsMuxer version nightly-2024-03-14-01-51-12 allows attackers to cause Denial of Service (DoS), Information Disclosure and Code Execution via a crafted MKV video file.

How urgent is CVE-2024-49777?

Priority 49/100. High severity; Public exploit reference

Related CVEs

CVE-2024-52613 MEDIUM 5.5 DOWNGRADE A heap-based buffer under-read in tsMuxer version nightly-2024-05-12-02-01-18 allows attackers to cause Denial
CVE-2024-49778 HIGH 8.8 DOWNGRADE A heap-based buffer overflow in tsMuxer version nightly-2024-05-12-02-01-18 allows attackers to cause Denial o
CVE-2024-49776 MEDIUM 6.5 DOWNGRADE A negative-size-param in tsMuxer version nightly-2024-04-05-01-53-02 allows attackers to cause Denial of Servi
CVE-2024-41217 MEDIUM 6.5 DOWNGRADE A heap-based buffer overflow in tsMuxer version nightly-2024-05-10-02-00-45 allows attackers to cause Denial o
CVE-2024-41209 HIGH 8.8 DOWNGRADE A heap-based buffer overflow in tsMuxer version nightly-2024-03-14-01-51-12 allows attackers to cause Denial o

References

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