How severe is CVE-2023-27882?

CVE-2023-27882 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-27882 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-27882?

CVE-2023-27882 primarily affects Silabs Gecko Software Development Kit. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-27882?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2023-27882 published?

CVE-2023-27882 was published on 2023-11-14 and last updated on 2026-06-17.

CVE-2023-27882

CVE-2023-27882 is a critical-severity vulnerability in Silabs Gecko Software Development Kit with a CVSS 3.x base score of 9.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.0)
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Silabs Gecko Software Development Kit
Published: 2023-11-14
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2023-27882?: 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.
How severe is CVE-2023-27882?: CVE-2023-27882 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-27882 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-27882?: CVE-2023-27882 primarily affects Silabs Gecko Software Development Kit. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-27882?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-27882 published?: CVE-2023-27882 was published on 2023-11-14 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:silabs:gecko_software_development_kit:4.3.1:*:*:*:*:*:*:*
cpe:2.3:a:weston-embedded:cesium_net:3.07.01:*:*:*:*:*:*:*
cpe:2.3:a:weston-embedded:uc-http:3.01.01:*:*:*:*:*:*:*

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