CVE-2026-4185

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.25% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 16.8% of scored records. A rank, not a probability.

NVD base score

2.1 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-03-15 18:32Z5 MO AGO

Last updated

2026-03-17 15:18Z5 MO AGO

Reserved

2026-03-14

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Weaknesses

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
• CWE-121Stack-based Buffer OverflowVariant

Data version

5.2

Document digest

91f5e382bea9eb80bc37b4ac268317787ff5c2b915999d64e35946c0e92b6064

• vuldb.comVDB-351091 | GPAC MP4Box swf_parse.c swf_def_bits_jpeg stack-based overflowhttps://vuldb.com/?id.351091vdb-entrytechnical-description
• vuldb.comVDB-351091 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/?ctiid.351091signaturepermissions-required
• vuldb.comSubmit #769840 | gpac MP4Box MP4Box - GPAC version 2.5-DEV-rev2167-gcc9d617c0-master and earlier Stack-based Buffer Overflowhttps://vuldb.com/?submit.769840third-party-advisory
• github.comhttps://github.com/gpac/gpac/issues/3436issue-tracking
• github.comhttps://github.com/PeterXukt/test_pocs/blob/main/gpac/test.swfexploit
• github.comhttps://github.com/gpac/gpac/commit/8961c74f87ae3fe2d3352e622f7730ca96d50cf1patch
• github.comhttps://github.com/gpac/gpac/product