HOMEVULNERABILITIESCVE-2023-27882
CRITICAL

CVE-2023-27882

CWE-122Published: November 14, 2023· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official 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.

NVD Source

Risk Analysis

A heap-based buffer overflow in the form boundary functionality of Weston Embedded uC-HTTP allows for remote code execution via malicious network packets. This critical vulnerability is remotely exploitable with low complexity.

There is no known public exploit, and it is not in the KEV catalog.

Recommended Action

Update the affected software to the latest version provided by the vendor.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-27882 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

silabs1 product(s)
gecko software development kit
weston-embedded2 product(s)
cesium netuc-http
Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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Official Patches & Advisories

All References (3)

Quick Facts

CVE IDCVE-2023-27882
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-122
CISA KEVNo
Affected2 vendor(s)
PublishedNov 14, 2023

Related CVEs (CWE-122)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2023-27882 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.