What is the CVSS score of CVE-2023-40294?

CVE-2023-40294 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.6%.

Is there a public PoC exploit available for CVE-2023-40294?

Yes, a public proof-of-concept exploit is available for CVE-2023-40294. Prioritise patching immediately. EPSS: 0.6%.

Boron CVE-2023-40294

MEDIUM

Out-of-bounds Write (CWE-787)

2023-08-14 cve@mitre.org

Memory Corruption Buffer Overflow Boron

6.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.5 MEDIUM

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Aug 14, 2023 - 04:15 nvd

MEDIUM 6.5

DescriptionNVD

libboron in Boron 2.0.8 has a heap-based buffer overflow in ur_parseBlockI at i_parse_blk.c.

AnalysisAI

libboron in Boron 2.0.8 has a heap-based buffer overflow in ur_parseBlockI at i_parse_blk.c. Rated medium severity (CVSS 6.5), 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 Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. libboron in Boron 2.0.8 has a heap-based buffer overflow in ur_parseBlockI at i_parse_blk.c. Affected products include: 0Branch Boron.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).