What is the CVSS score of CVE-2018-3949?

CVE-2018-3949 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 53.3%.

Is there a public PoC exploit available for CVE-2018-3949?

Yes, a public proof-of-concept exploit is available for CVE-2018-3949. Prioritise patching immediately. EPSS: 53.3%.

Tl R600Vpn Firmware CVE-2018-3949

HIGH

Path Traversal (CWE-22)

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

Information Disclosure TP-Link Path Traversal Tl R600Vpn Firmware

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

Dec 01, 2018 - 03:29 nvd

HIGH 7.5

DescriptionNVD

An exploitable information disclosure vulnerability exists in the HTTP server functionality of the TP-Link TL-R600VPN. A specially crafted URL can cause a directory traversal, resulting in the disclosure of sensitive system files. An attacker can send either an unauthenticated or an authenticated web request to trigger this vulnerability.

AnalysisAI

An exploitable information disclosure vulnerability exists in the HTTP server functionality of the TP-Link TL-R600VPN. Rated high severity (CVSS 7.5), 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 Path Traversal (CWE-22), which allows attackers to access files and directories outside the intended path. An exploitable information disclosure vulnerability exists in the HTTP server functionality of the TP-Link TL-R600VPN. A specially crafted URL can cause a directory traversal, resulting in the disclosure of sensitive system files. An attacker can send either an unauthenticated or an authenticated web 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. Validate and canonicalize file paths. Use chroot or sandboxing. Reject input containing path separators or '../' sequences.