CVE-2023-6602Public exploitNetwork attack vector

Local file disclosure via retained TTY demuxer

Published Dec 31, 2024 · Updated Nov 3, 2025

Resource injection in FFmpeg 2.0 through 6.0 allows remote attackers to disclose local file contents through a crafted HLS playlist. The HLS demuxer retains the TTY format selected from a rejected segment and applies it to later file URI data instead of restarting format detection. Exploitation requires automatic input-format probing; the TTY demuxer renders the referenced file as ASCII in the output video.

CVSS severity5.3
Medium
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource injection in FFmpeg 2.0 through 6.0 allows remote attackers to disclose local file contents through a crafted HLS playlist. The HLS demuxer retains the TTY format selected from a rejected segment and applies it to later file URI data instead of restarting format detection. Exploitation requires automatic input-format probing; the TTY demuxer renders the referenced file as ASCII in the output video.

The record

CVE
CVE-2023-6602
Published
Dec 31, 2024
Updated
Nov 3, 2025
Vendor
FFmpeg
Product
FFmpeg
Classifications
CWE-99, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 31, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.0 <6.*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

FFmpeg · FFmpegversion=2.0 <6.*

Published CVSS scores

5.3Red HatCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-99Improper Control of Resource Identifiers ('Resource Injection')
T1005Data from Local System

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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