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CVE-2023-27882

Weston-embedded Uc-http buffer overflow

9.0 CRITICALPublic exploitEPSS 1.78%
  1. Published14 Nov 2023

Description

A heap-based buffer overflow vulnerability exists in the HTTP Server form boundary functionality of Weston Embedded uC-HTTP v3.01.01. A specially crafted network packet can lead to code execution. An attacker can send a malicious packet to trigger this vulnerability.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

Silabs Gecko Software Development Kit4.3.1
Weston-embedded Cesium Net3.07.01
Weston-embedded Uc-http3.01.01

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2023-27882 being actively exploited?

CVE-2023-27882 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 1.78%.

How severe is CVE-2023-27882?

CVE-2023-27882 has a CVSS 3.1 base score of 9.0, rated critical. EPSS estimates a 1.78% probability of exploitation.

Which products are affected by CVE-2023-27882?

Affected products include Silabs Gecko Software Development Kit, Weston-embedded Cesium Net, Weston-embedded Uc-http.

How do I fix CVE-2023-27882?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-27882 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.