CVE-2025-56226

MEDIUMNVD 5.35.3—Trending — 4 sources updated this weekElevated

5.3

Libsndfile <=1.2.2 contains a memory leak vulnerability in the mpeg_l3_encoder_init() function within the mpeg_l3_encode.c file.

CVSS v3: 5.3
EG Score: 5.3(medium)
EPSS: 29.3%
KEV: Not listed

Published

January 14, 2026

Last Modified

January 21, 2026

References (2)

Vendor Advisories for CVE-2025-56226(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

CVE-2025-56226
Microsoft Security Response Center (MSRC)Medium
Libsndfile <=1.2.2 contains a memory leak vulnerability in the mpeg_l3_encoder_init() function within the mpeg_l3_encode.c file.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-401Missing Release of Memory after Effective Lifetime (Memory Leak)

Data Freshness Timeline

(refreshed 12× in last 7d / 16× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-05 06:10 UTCepss_batch
2026-06-05 06:10 UTCepss_batch
2026-06-04 13:12 UTCepss_batch
2026-06-04 13:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 16:00 UTCEG score recompute
2026-05-29 16:00 UTCVendor advisory
2026-05-29 16:00 UTCGHSA enrichment
2026-05-29 13:44 UTCepss_batch

Frequently asked(5)

What is CVE-2025-56226?

CVE-2025-56226 is a medium vulnerability published on January 14, 2026. Libsndfile <=1.2.2 contains a memory leak vulnerability in the mpegl3encoderinit() function within the mpegl3_encode.c file.

When was CVE-2025-56226 disclosed?

CVE-2025-56226 was first published in the National Vulnerability Database on January 14, 2026, with the most recent update on January 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-56226 actively exploited?

CVE-2025-56226 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 29.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-56226?

CVE-2025-56226 has a CVSS v3 base score of 5.3 (NVD).

How do I remediate CVE-2025-56226?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-56226, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2025-56226

📅 Published

🔄 Last Modified

🔗 References (2)

📣 Vendor Advisories for CVE-2025-56226(1)