CVE-2021-31255
Buffer overflow in the abst_box_read function in MP4Box in GPAC 1.0.1 allows attackers to cause a denial of service or execute arbitrary code via a crafted file.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.47%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Buffer overflow in the abst_box_read function in MP4Box in GPAC 1.0.1 allows attackers to cause a denial of service or execute arbitrary code via a crafted file.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.47% probability · 74th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-120
- Affected
- gpac/gpac
- Source
- cve@mitre.org
EPSS 1.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/gpac/gpac/commit/758135e91e623d7dfe7f6aaad7aeb3f791b7a4e5Patch, Third Party Advisory
- https://github.com/gpac/gpac/issues/1733Exploit, Third Party Advisory
- https://github.com/gpac/gpac/commit/758135e91e623d7dfe7f6aaad7aeb3f791b7a4e5Patch, Third Party Advisory
- https://github.com/gpac/gpac/issues/1733Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.