CVE-2025-8537

MEDIUMNVD 5.95.9—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.9 under NVD CVSS v3. EPSS exploit probability: 0.6%, top 55% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Elevated
5.9
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 5.9Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A vulnerability, which was classified as problematic, was found in Axiomatic Bento4 up to 1.6.0-641. Affected is the function AP4_DataBuffer::SetDataSize of the file Mp4Decrypt.cpp of the component mp4decrypt. The manipulation leads to allocation of resources. It is possible to launch the attack remotely. The complexity of an attack is rather high. The exploitability is told to be difficult. The exploit has been disclosed to the public and may be used.

CVSS v3
5.9
EG Score
5.9(medium)
EG Risk
43(Track)
EG Risk 43/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity59% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
45.0%
KEV
Not listed

Published

August 5, 2025

Last Modified

June 17, 2026

References (7)

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 48× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 117 total refreshes for this CVE.

  1. 2026-07-23 14:18 UTCEPSS rescore
  2. 2026-07-23 14:18 UTCEPSS rescore
  3. 2026-07-23 03:03 UTCEG score recompute▲ 2.20
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  24. 2026-07-10 08:28 UTCOSV refresh
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  1. 2026-07-08 15:15 UTCEPSS rescore
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  23. 2026-06-24 09:53 UTCNVD updateCVSS v3 → 5.9 · CVSS v4 → 2.9 · severity → MEDIUM
  24. 2026-06-23 21:32 UTCEPSS rescore
  25. 2026-06-22 14:25 UTCEPSS rescore
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  27. 2026-06-21 19:12 UTCOSV refresh
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Frequently asked(5)

What is CVE-2025-8537?
CVE-2025-8537 is a medium vulnerability published on August 5, 2025. A vulnerability, which was classified as problematic, was found in Axiomatic Bento4 up to 1.6.0-641. Affected is the function AP4_DataBuffer::SetDataSize of the file Mp4Decrypt.cpp of the component mp4decrypt. The manipulation leads to allocation of resources. It is possible to launch the attack…
When was CVE-2025-8537 disclosed?
CVE-2025-8537 was first published in the National Vulnerability Database on August 5, 2025, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-8537 actively exploited?
CVE-2025-8537 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 45.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-8537?
CVE-2025-8537 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2025-8537?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-8537, 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.

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