CVE-2026-39103

MEDIUMNVD 5.55.5—Elevated

5.5

Buffer Overflow vulnerability in GPAC before commit v391dc7f4d234988ea0bc3cc294eb725eddf8f702 allows an attacker to cause a denial of service via the src/scenegraph/svg_attributes.c, svg_parse_strings(), gf_svg_parse_attribute()

CVSS v3: 5.5
EG Score: 5.5(high)
EPSS: 4.7%
KEV: Not listed

Published

May 5, 2026

Last Modified

May 29, 2026

Advisory Details (2)

Auto-updated May 6, 2026

No patch confirmed yet.

generic

Heap-buffer-overflow in svg_parse_strings when parsing a crafted SVG file · Issue #3506 · gpac/gpac · GitHub

https://github.com/gpac/gpac/issues/3506

generic

fuzz: fix boundary tests in svg_parse_strings() (fixes #3506) · gpac/gpac@391dc7f · GitHub

https://github.com/gpac/gpac/commit/391dc7f4d234988ea0bc3cc294eb725eddf8f702

Weakness Classification(1)

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

CWE-122Heap-based Buffer Overflow

Data Freshness Timeline

(refreshed 16× in last 7d / 20× 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.

2026-05-31 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
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2026-05-29 13:44 UTCepss_batch
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2026-05-28 13:44 UTCepss_batch
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2026-05-27 13:40 UTCepss_batch
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2026-05-26 13:44 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-20 14:27 UTCEG score recompute
2026-05-20 14:27 UTCGHSA enrichment
2026-05-20 11:22 UTCepss_batch
2026-05-20 11:22 UTCepss_batch

Frequently asked(5)

What is CVE-2026-39103?

CVE-2026-39103 is a medium vulnerability published on May 5, 2026. Buffer Overflow vulnerability in GPAC before commit v391dc7f4d234988ea0bc3cc294eb725eddf8f702 allows an attacker to cause a denial of service via the src/scenegraph/svgattributes.c, svgparsestrings(), gfsvgparseattribute()

When was CVE-2026-39103 disclosed?

CVE-2026-39103 was first published in the National Vulnerability Database on May 5, 2026, with the most recent update on May 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-39103 actively exploited?

CVE-2026-39103 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-39103?

CVE-2026-39103 has a CVSS v3 base score of 5.5 (NVD).

How do I remediate CVE-2026-39103?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-39103, 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-2026-39103

📅 Published

🔄 Last Modified

📋 Advisory Details (2)