Skip to content
Noroxi
NVD / CVE Program· CNA mitre

CVE-2025-63757: Integer overflow vulnerability in the yuv2ya16_X_c_template function in libswscale/output.c in FFmpeg 8.0.

Noroxi assessment

Priority: Monitor (action score 30/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.38% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • Fixed version: ffmpeg (Debian:11) 7:4.3.9-0+deb11u2; ffmpeg (Debian:12) 7:5.1.8-0+deb12u1; ffmpeg (Debian:13) 7:7.1.3-0+deb13u1.

Low priority for now. Upgrade to ffmpeg (Debian:11) 7:4.3.9-0+deb11u2; ffmpeg (Debian:12) 7:5.1.8-0+deb12u1; ffmpeg (Debian:13) 7:7.1.3-0+deb13u1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

HighCVSS 7.5 · v3.1—No exploit Fix available
Published
Dec 18, 2025
Updated
Oct 13, 2026
EPSS
0.3% · 32th percentile

Report tools

JSON

Action score

30

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2025-63757

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for ffmpeg records

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
ffmpegffmpeg

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • ffmpeg ffmpeg8

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:11ffmpegbefore 7:4.3.9-0+deb11u27:4.3.9-0+deb11u2
Debian:12ffmpegbefore 7:5.1.8-0+deb12u17:5.1.8-0+deb12u1
Debian:13ffmpegbefore 7:7.1.3-0+deb13u17:7.1.3-0+deb13u1
Debian:14ffmpegbefore 7:7.1.3-17:7.1.3-1
openSUSE:Leap 15.6ffmpeg-4before 4.4.6-150600.13.38.14.4.6-150600.13.38.1
openSUSE:Leap 16.0ffmpeg-4before 4.4.5-bp160.2.14.4.5-bp160.2.1
openSUSE:Tumbleweedffmpeg-4before 4.4.6-11.14.4.6-11.1
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSffmpeg-4before 4.4.7-150400.3.67.14.4.7-150400.3.67.1
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSffmpeg-4before 4.4.6-150400.3.60.14.4.6-150400.3.60.1
SUSE:Linux Enterprise Module for Package Hub 15 SP7ffmpeg-4before 4.4.7-150600.13.47.14.4.7-150600.13.47.1
SUSE:Linux Enterprise Module for Package Hub 15 SP7ffmpeg-4before 4.4.6-150600.13.38.14.4.6-150600.13.38.1

Same product

ffmpeg: all records

Other highest-scoring records for the same primary product.

  • CVE-2009-4637FFmpeg 0.5 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unknown vectors that trigger
    45Plan
  • CVE-2016-10190Heap-based buffer overflow in libavformat/http.c in FFmpeg before 2.8.10, 3.0.x before 3.0.5, 3.1.x before 3.1.6, and 3.2.x before 3.2.2 all
    42Plan
  • CVE-2009-4634Multiple integer underflows in FFmpeg 0.5 allow remote attackers to cause a denial of service and possibly execute arbitrary code via a craf
    42Plan

Published before and after this one in the same product

  • ← EarlierCVE-2025-59733Oct 6, 2025 · Heap-buffer-overflow write in FFmpeg EXR dwa_uncompress
    34Monitor
  • ← EarlierCVE-2025-59734Oct 6, 2025 · Heap-buffer-overflow write in FFmpeg SANM process_ftch
    34Monitor
  • Later →CVE-2025-10256Feb 18, 2026 · Ffmpeg: null pointer dereference in firequalizer filter (libavfilter/af_firequalizer.c)
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:ffmpeg7:5.1.8-0+deb12u1 · Debian:12Package registry (OSV)
opensuse:ffmpeg-44.4.6-150600.13.38.1 · openSUSE:Leap 15.6Package registry (OSV)
suse:ffmpeg-44.4.6-150600.13.38.1 · SUSE:Linux Enterprise Module for Package Hub 15 SP7Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-40962118 days apartFFmpeg before 8.1 has an integer overflow and resultant out-of-bounds write via CENC (Common Encryption) subsample data to libavformat/mov.c
    39Monitor
  • CVE-2024-35366384 days apartFFmpeg n6.1.1 is Integer Overflow.
    36Monitor
  • CVE-2026-70628231 days apartFFmpeg 0.5 < 9.0 DVB Subtitle Parser Heap Buffer Overflow via WTV File
    34Monitor
  • CVE-2026-96611279 days apartFFmpeg before 9.0 has a signed integer overflow in libavformat/mov.c.
    31Monitor
  • CVE-2024-36616384 days apartAn integer overflow in the component /libavformat/westwood_vqa.c of FFmpeg n6.1.1 allows attackers to cause a denial of service in the appli
    26Monitor
  • CVE-2024-36613349 days apartFFmpeg n6.1.1 has a vulnerability in the DXA demuxer of the libavformat library allowing for an integer overflow, potentially resulting in a
    24Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-190 · Integer Overflow or Wraparound

CVSS vector

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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records