What is the CVSS score of CVE-2022-36477?

CVE-2022-36477 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.3%.

Is there a public PoC exploit available for CVE-2022-36477?

Yes, a public proof-of-concept exploit is available for CVE-2022-36477. Prioritise patching immediately. EPSS: 0.3%.

B5 Mini Firmware CVE-2022-36477

HIGH

Out-of-bounds Write (CWE-787)

2022-08-25 cve@mitre.org

Memory Corruption Buffer Overflow B5 Mini Firmware

7.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.8 HIGH

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Aug 25, 2022 - 14:15 nvd

HIGH 7.8

DescriptionNVD

H3C B5 Mini B5MiniV100R005 was discovered to contain a stack overflow via the function AddWlanMacList.

AnalysisAI

H3C B5 Mini B5MiniV100R005 was discovered to contain a stack overflow via the function AddWlanMacList. Rated high severity (CVSS 7.8), this vulnerability is 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. H3C B5 Mini B5MiniV100R005 was discovered to contain a stack overflow via the function AddWlanMacList. Affected products include: H3C B5 Mini Firmware.

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).