CVE-2026-79513: gpac — Exploit & Fix

Description

A divide-by-zero vulnerability in the gf_dash_get_timeline_duration function (src/media_tools/dash_client.c) of GPAC v26.07.0 allows attackers to cause a Denial of Service (DoS) via a crafted MPD SegmentTimeline. Fixed in 2fd5a06ab226767900fd86edb5a1e8bfc1010640.

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CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS — Exploit Prediction

0.0021

Probability of exploitation

0.11%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-369 CWE-369

Affected Products

Vendor	Product	Versions
gpac	gpac	All

References

Advisories & Patches

https://github.com/gpac/gpac/commit/2fd5a06ab226767900fd86edb5a1e8bfc1010640 https://github.com/gpac/gpac/issues/3862 https://github.com/gpac/gpac/issues/3862

Exploits

https://github.com/gpac/gpac/issues/3862 https://github.com/gpac/gpac/issues/3862

Frequently Asked Questions

What is CVE-2026-79513? +

A divide-by-zero vulnerability in the gf_dash_get_timeline_duration function (src/media_tools/dash_client.c) of GPAC v26.07.0 allows attackers to cause a Denial of Service (DoS) via a crafted MPD SegmentTimeline. Fixed in 2fd5a06ab226767900fd86edb5a1e8bfc1010640. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2026-79513? +

CVE-2026-79513 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0021, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-79513? +

CVE-2026-79513 affects products from gpac, specifically: gpac. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-79513? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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