What is CVE-2021-35344?

CVE-2021-35344 is a critical-severity vulnerability in Tsmuxer Project, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2021-12-03.

How severe is CVE-2021-35344?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2021-35344 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Tsmuxer Project

CVE-2021-35344

tsMuxer v2.6.16 was discovered to contain a heap-based buffer overflow via the function BitStreamReader::getCurVal in bitStream.h.

Vulnerability class: Buffer Overflow

EPSS: 0.017 (75.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Tsmuxer_project Tsmuxer — versions 2.6.16
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-35344?: CVE-2021-35344 is a critical-severity vulnerability in Tsmuxer Project, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2021-12-03.
How severe is CVE-2021-35344?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2021-35344 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.