What is the CVSS score of CVE-2023-36243?

CVE-2023-36243 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.3%.

Is there a public PoC exploit available for CVE-2023-36243?

Yes, a public proof-of-concept exploit is available for CVE-2023-36243. Prioritise patching immediately. EPSS: 0.3%.

Flvmeta CVE-2023-36243

HIGH

Classic Buffer Overflow (CWE-120)

2023-06-22 cve@mitre.org

Buffer Overflow Flvmeta

7.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Jun 22, 2023 - 19:15 nvd

HIGH 7.8

DescriptionNVD

FLVMeta v1.2.1 was discovered to contain a buffer overflow via the xml_on_metadata_tag_only function at dump_xml.c.

AnalysisAI

FLVMeta v1.2.1 was discovered to contain a buffer overflow via the xml_on_metadata_tag_only function at dump_xml.c. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. FLVMeta v1.2.1 was discovered to contain a buffer overflow via the xml_on_metadata_tag_only function at dump_xml.c. Affected products include: Flvmeta.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.