CVE-2025-63757

Integer overflow vulnerability in the yuv2ya16_X_c_template function in libswscale/output.c in FFmpeg 8.0.

Published: 2025-12-18 Last update: 2025-12-30 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-63757 is rated Low Risk (37.5/100): CVSS High severity, with low exploitation likelihood (EPSS 0.07%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-63757

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-01-18 0.05% 0.07% +0.02%
2 2025-12-31 0.05% 0.05% -0.00%
3 2025-12-24 — 0.05% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-63757

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-63757

OS Trackers for CVE-2025-63757

vendor priority summary link
debian not yet assigned CVE-2025-63757 not yet assigned priority: Debian including 1 source packages (ffmpeg), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2025-63757
redhat medium — https://access.redhat.com/security/cve/CVE-2025-63757
suse high CVE-2025-63757 severity important: SUSE including 104 source package names (ffmpeg, ffmpeg-4-4.4.5-bp160.2.1, …), 417 product×package rows across 32 product lines (Image SLES15-SP4-SAP-Azure-LI-BYOS, Image SLES15-SP4-SAP-Azure-LI-BYOS-Production, … (32 product lines)): Known Not Affected 281, Fixed 136. https://www.suse.com/security/cve/CVE-2025-63757/
ubuntu medium CVE-2025-63757 medium priority: Ubuntu including 2 source packages (ffmpeg, libav), 14 status rows across 9 suites (bionic, focal, jammy, noble, plucky, questing, trusty, upstream, xenial): released 7, DNE 4, needs-triage 2, ignored 1. https://ubuntu.com/security/CVE-2025-63757

Affected software / configurations for CVE-2025-63757

Vendor Product Version Raw CPE
ffmpeg ffmpeg 8 cpe:2.3:a:ffmpeg:ffmpeg:8:*:*:*:*:*:*:*

References for CVE-2025-63757

cvelogic Threat Intelligence