What is the CVSS score of CVE-2021-27516?

CVE-2021-27516 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: 2.5%.

Is there a public PoC exploit available for CVE-2021-27516?

Yes, a public proof-of-concept exploit is available for CVE-2021-27516. Prioritise patching immediately. EPSS: 2.5%.

Is there a patch available for CVE-2021-27516?

Yes, a patch is available for CVE-2021-27516. Update the affected software to the latest version immediately.

Uri Js CVE-2021-27516

HIGH

2021-02-22 cve@mitre.org

Information Disclosure Uri Js

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

Feb 22, 2021 - 00:15 nvd

HIGH 7.5

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

59 npm packages depend on urijs (16 direct, 43 indirect)

Ecosystem-wide dependent count for version 1.19.6.

DescriptionNVD

URI.js (aka urijs) before 1.19.6 mishandles certain uses of backslash such as http:\/ and interprets the URI as a relative path.

AnalysisAI

URI.js (aka urijs) before 1.19.6 mishandles certain uses of backslash such as http:\/ and interprets the URI as a relative path. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

URI.js (aka urijs) before 1.19.6 mishandles certain uses of backslash such as http:\/ and interprets the URI as a relative path. Affected products include: Uri.Js Project Uri.Js. Version information: before 1.19.6.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.