How severe is CVE-2026-39103?

CVE-2026-39103 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-39103 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-39103?

CVE-2026-39103 affects Gpac. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-39103?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-39103 have an EU (EUVD) identifier?

Yes. CVE-2026-39103 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27349.

When was CVE-2026-39103 published?

CVE-2026-39103 was published on 2026-05-05 and last updated on 2026-06-17.

CVE-2026-39103

CVE-2026-39103 is a medium-severity vulnerability in Gpac with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-122.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-27349
Weakness: CWE-122
Affected product: Gpac
Published: 2026-05-05
Last modified: 2026-06-17

Description

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()

Frequently asked questions

What is CVE-2026-39103?: 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()
How severe is CVE-2026-39103?: CVE-2026-39103 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-39103 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-39103?: CVE-2026-39103 affects Gpac. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-39103?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-39103 have an EU (EUVD) identifier?: Yes. CVE-2026-39103 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27349.
When was CVE-2026-39103 published?: CVE-2026-39103 was published on 2026-05-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gpac:gpac:*:*:*:*:*:*:*:*

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