What is the CVSS score of CVE-2022-40320?

CVE-2022-40320 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.1%.

Is there a public PoC exploit available for CVE-2022-40320?

Yes, a public proof-of-concept exploit is available for CVE-2022-40320. Prioritise patching immediately. EPSS: 1.1%.

Libconfuse CVE-2022-40320

HIGH

Out-of-bounds Read (CWE-125)

2022-09-09 cve@mitre.org

Information Disclosure Buffer Overflow Libconfuse Fedora

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Sep 09, 2022 - 21:15 nvd

HIGH 8.8

DescriptionNVD

cfg_tilde_expand in confuse.c in libConfuse 3.3 has a heap-based buffer over-read.

AnalysisAI

cfg_tilde_expand in confuse.c in libConfuse 3.3 has a heap-based buffer over-read. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Read (CWE-125), which allows attackers to read data from memory outside the intended buffer boundaries. cfg_tilde_expand in confuse.c in libConfuse 3.3 has a heap-based buffer over-read. Affected products include: Libconfuse Project Libconfuse, Fedoraproject Fedora.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate array indices and buffer lengths. Use memory-safe languages. Enable AddressSanitizer during testing.