7.3

CVE-2023-1862: cloudflare warp Improper Access Control

CVSS: 7.3v3.1HighModified
Published 20-06-2023Last modified 09-12-2024
Open JSON

Vulnerability summary

CVE-2023-1862 is a high (CVSS 7.3) Improper Access Control vulnerability in cloudflare warp. EPSS estimates a 0.75% chance of exploitation in the next 30 days, higher than 54.3% of scored vulnerabilities.

Overall risk
29/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.3/10
010
High · v3.1 (CVE.org)
EPSS score
0.75%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 20-06-2023
    PublishedVulnerability first disclosed.
  2. 09-12-2024
    Last modifiedVulnerability information updated.

Description

Cloudflare WARP client for Windows (up to v2023.3.381.0) allowed a malicious actor to remotely access the warp-svc.exe binary due to an insufficient access control policy on an IPC Named Pipe. This would have enabled an attacker to trigger WARP connect and disconnect commands, as well as obtaining network diagnostics and application configuration from the target's device. It is important to note that in order to exploit this, a set of requirements would need to be met, such as the target's device must've been reachable on port 445, allowed authentication with NULL sessions or otherwise having knowledge of the target's credentials.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.75%

Chance of exploitation in the next 30 days

Percentile

54%

Versus all other CVEs

30-day change

0.00 pp

From 0.75% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.75%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cloudflare2 products

1 vendor · 2 products

References

3 links