Cyber Resilience

CVE-2023-34188

High

Published: 23 June 2023

Published
23 June 2023
Modified
28 February 2025
KEV Added
Patch
CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0011 28.7th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-34188 is a high-severity Improper Validation of Specified Quantity in Input (CWE-1284) vulnerability in Cesanta Mongoose. Its CVSS base score is 7.5 (High).

Operationally, ranked at the 28.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

The HTTP server in Mongoose before 7.10 accepts requests containing negative Content-Length headers. By sending a single attack payload over TCP, an attacker can cause an infinite loop in which the server continuously reparses that payload, and does not respond…

more

to any other requests.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

cesanta
mongoose
≤ 7.10

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References