CVE-2025-25473

FFmpeg git master before commit c08d30 was discovered to contain a memory leak in the avformat_free_context function in libavutil/mem.c.

Published: 2025-02-18 Last update: 2026-04-15 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-25473 is rated Low Risk (33.3/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.14%). 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-2025-25473

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 2025-12-17 0.16% 0.14% -0.02%
2 2025-12-15 0.13% 0.16% +0.03%
3 2025-11-21 — 0.13% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-25473

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N 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:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-25473

OS Trackers for CVE-2025-25473

vendor priority summary link
debian unimportant CVE-2025-25473 unimportant 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-2025-25473
suse medium CVE-2025-25473 severity moderate: SUSE including 165 source package names (0.3.2-1.2:libavcodec58_134-4.4.5-150600.13.16.1, 0.3.2-1.2:libavformat58_76-4.4.5-150600.13.16.1, …), 487 product×package rows across 35 product lines (Container containers/lmcache-vllm-openai, Container containers/open-webui, … (35 product lines)): Fixed 247, Known Not Affected 240. https://www.suse.com/security/cve/CVE-2025-25473/
ubuntu medium CVE-2025-25473 medium priority: Ubuntu including 2 source packages (ffmpeg, libav), 17 status rows across 10 suites (bionic, focal, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): released 8, DNE 6, needs-triage 2, needed 1. https://ubuntu.com/security/CVE-2025-25473

Affected software / configurations for CVE-2025-25473

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2025-25473

cvelogic Threat Intelligence