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CVE-2023-2091

26
FAUCET Score

CVE-2023-2091 is a critical OS command injection vulnerability in KylinSoft youker-assistant on KylinOS, specifically within the adjust_cpufreq_scaling_governer function. This flaw allows a local attacker to execute arbitrary commands with high impact on confidentiality, integrity, and availability. While the exploit has been publicly disclosed, there is no evidence of active exploitation, Metasploit modules, or significant community discussion. Organizations using KylinOS are advised to upgrade to youker-assistant version 3.1.4.13 to remediate this issue.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.1.4.13CPE matchmatch criteria
cpe:2.3:a:kylinos:youker-assistant:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.47%
Probability of exploitation in next 30 days
EPSS Percentile
71.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0147 is in the 95th percentile among its peer group of 16,994 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / i900008/vulndb/blob/main/youker-assistant_vuln.md
ExploitThird Party Advisory
kylinos.cn / support/loophole/patch/3375.html
vuldb.com
Permissions RequiredThird Party Advisory
vuldb.com
Third Party Advisory