What is the CVSS score of CVE-2018-3951?

CVE-2018-3951 has a CVSS 3.1 base score of 7.2 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 3.9%.

Is there a public PoC exploit available for CVE-2018-3951?

Yes, a public proof-of-concept exploit is available for CVE-2018-3951. Prioritise patching immediately. EPSS: 3.9%.

Tl R600Vpn Firmware CVE-2018-3951

HIGH

Buffer Overflow (CWE-119)

2018-12-01 talos-cna@cisco.com

RCE Buffer Overflow TP-Link Tl R600Vpn Firmware

7.2

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.2 HIGH

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Dec 01, 2018 - 06:29 nvd

HIGH 7.2

DescriptionNVD

An exploitable remote code execution vulnerability exists in the HTTP header-parsing function of the TP-Link TL-R600VPN HTTP Server. A specially crafted HTTP request can cause a buffer overflow, resulting in remote code execution on the device. An attacker can send an authenticated HTTP request to trigger this vulnerability.

AnalysisAI

An exploitable remote code execution vulnerability exists in the HTTP header-parsing function of the TP-Link TL-R600VPN HTTP Server. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Buffer Overflow (CWE-119), which allows attackers to corrupt memory to execute arbitrary code or crash the application. An exploitable remote code execution vulnerability exists in the HTTP header-parsing function of the TP-Link TL-R600VPN HTTP Server. A specially crafted HTTP request can cause a buffer overflow, resulting in remote code execution on the device. An attacker can send an authenticated HTTP request to trigger this vulnerability. Affected products include: Tp-Link Tl-R600Vpn Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use memory-safe languages or bounds-checking. Enable ASLR, DEP/NX, stack canaries. Use safe string functions.