What is the CVSS score of CVE-2024-33820?

CVE-2024-33820 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.6%.

Is there a public PoC exploit available for CVE-2024-33820?

Yes, a public proof-of-concept exploit is available for CVE-2024-33820. Prioritise patching immediately. EPSS: 0.6%.

A3002r Firmware CVE-2024-33820

HIGH

Classic Buffer Overflow (CWE-120)

2024-05-01 cve@mitre.org

Buffer Overflow A3002r Firmware

7.5

CVSS 3.1 · Vendor: mitre

Severity by source

Vendor (mitre) PRIMARY

7.5 HIGH

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

Primary rating from Vendor (mitre) · only source for this CVE.

CVSS VectorVendor: mitre

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

Attack Vector

Adjacent

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

May 01, 2024 - 16:15 cve.org

HIGH 7.5

DescriptionCVE.org

Totolink AC1200 Wireless Dual Band Gigabit Router A3002R_V4 Firmware V4.0.0-B20230531.1404 is vulnerable to Buffer Overflow via the formWlEncrypt function of the boa server. Specifically, they exploit the length of the wlan_ssid field triggers the overflow.

AnalysisAI

Totolink AC1200 Wireless Dual Band Gigabit Router A3002R_V4 Firmware V4.0.0-B20230531.1404 is vulnerable to Buffer Overflow via the formWlEncrypt function of the boa server. Rated high severity (CVSS 7.5), this vulnerability is no authentication required. 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. Totolink AC1200 Wireless Dual Band Gigabit Router A3002R_V4 Firmware V4.0.0-B20230531.1404 is vulnerable to Buffer Overflow via the formWlEncrypt function of the boa server. Specifically, they exploit the length of the wlan_ssid field triggers the overflow. Affected products include: Totolink A3002R Firmware.

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.