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CVE-2026-82820: Heap-based Buffer Overflow in FLVMeta

0
Medium
VulnerabilityCVE-2026-82820cvecve-2026-82820
Published: 08/31/2026 (08/31/2026, 18:30:08 UTC)
Source: CVE Database V5
Product: FLVMeta

Description

A vulnerability was found in FLVMeta up to 1.2.2. Affected is the function amf_string_new of the file src/amf.c of the component AMF String Processing. The manipulation of the argument length results in heap-based buffer overflow. The attack can be launched remotely. The exploit has been made public and could be used. The patch is identified as f412a33b9a84c2d1a9dee145a868feddbf64879e. A patch should be applied to remediate this issue. The project maintainer doubts the security impact: "While I acknowledged the bugs and provided fixes, I have yet to see any way to exploit these alleged vulnerabilities."

CVSS v4.0

Score 5.3medium

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
Passive
Vuln. Confidentiality
None
Vuln. Integrity
None
Vuln. Availability
Low
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

Affected software

Affected versions
=1.2.0=1.2.1=1.2.2
CPE configurations
cpe:2.3:a:flvmeta:flvmeta:*:*:*:*:*:*:*:*

Technical Details

Data Version
5.2
Assigner Short Name
VulDB
Date Reserved
2026-08-31T05:57:01.935Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 6a95cd85acd9273b49762f87

Added to database: 08/31/2026, 18:52:53 UTC

Last updated: 08/31/2026, 19:37:47 UTC

Views: 5

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