Is CVE-2023-6602 in the CISA KEV catalog?

No. CVE-2023-6602 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-6602?

CVE-2023-6602 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2023-6602?

CVE-2023-6602 has an EPSS score of 0.41% (33th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-6602?

Upgrade ffmpeg on debian 11 to 7:4.3.9-0+deb11u1 or later.

CVE & CISA-KEV Catalog

CVE-2023-6602

MEDIUM

5.3

CVSS v3

NVD

Description

A flaw was found in FFmpeg's TTY Demuxer. This vulnerability allows possible data exfiltration via improper parsing of non-TTY-compliant input files in HLS playlists.

CWE-99

How to fix

Remediation Available

ffmpegDebian

Fixed in:7:4.3.9-0+deb11u1CVE-2023-6602

Fixed in:7:5.1.7-0+deb12u1CVE-2023-6602

Fixed in:7:7.1.1-1CVE-2023-6602

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploit Intelligence

0.41%probability of exploitation in 30 days

33rdpercentile

Low risk: more likely to be exploited than 33% of all known CVEs.

References

Exploit1

bugzilla.redhat.com

Other references1

lists.debian.org

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.