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CVE-2023-27882

30
FAUCET Score

CVE-2023-27882 is a critical heap-based buffer overflow vulnerability in the HTTP Server form boundary functionality of Weston Embedded uC-HTTP v3.01.01 and related Silicon Labs products. This vulnerability allows an unauthenticated attacker to achieve remote code execution by sending a specially crafted network packet. With a CVSS score of 9.8, it poses a severe risk due to its network attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion with 10 mentions, indicating awareness and potential interest.

Impacted Technologies

VendorProductVersion(s)CPE
4.3.1CPE matchmatch criteria
cpe:2.3:a:silabs:gecko_software_development_kit:4.3.1:*:*:*:*:*:*:*
3.07.01CPE matchmatch criteria
cpe:2.3:a:weston-embedded:cesium_net:3.07.01:*:*:*:*:*:*:*
3.01.01CPE matchmatch criteria
cpe:2.3:a:weston-embedded:uc-http:3.01.01:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.0CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.78%
Probability of exploitation in next 30 days
EPSS Percentile
75.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0178 is in the 64th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 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

talosintelligence.com / vulnerability_reports/TALOS-2023-1733
talosintelligence.com / vulnerability_reports/TALOS-2023-1733
ExploitTechnical DescriptionThird Party Advisory