Cyber Resilience

CVE-2024-20523

Medium

Published: 02 October 2024

Published
02 October 2024
Modified
08 October 2024
KEV Added
Patch
CVSS Score v3.1 6.8 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
EPSS Score 0.0028 52.1th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-20523 is a medium-severity Stack-based Buffer Overflow (CWE-121) vulnerability in Cisco Rv042 Firmware. Its CVSS base score is 6.8 (Medium).

Operationally, ranked in the top 47.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

A vulnerability in the web-based management interface of Cisco Small Business RV042, RV042G, RV320, and RV325 Routers could allow an authenticated, Administrator-level, remote attacker to cause an unexpected reload of an affected device, resulting in a denial of service (DoS)…

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condition. To exploit this vulnerability, an attacker would need to have valid Administrator credentials on the affected device.   This vulnerability is due to improper validation of user input that is in incoming HTTP packets. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web-based management interface of the affected device. A successful exploit could allow the attacker to cause an unexpected reload of the device, resulting in a DoS condition.

CWE(s)

Related Threats

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

Affected Assets

cisco
rv042 firmware
1.0.1.17, 1.0.2.03, 1.1.0.09, 1.1.1.06, 1.1.1.19
cisco
rv042g firmware
1.0.1.17, 1.0.2.03, 1.1.0.09, 1.1.1.06, 1.1.1.19
cisco
rv320 firmware
1.0.1.17, 1.0.2.03, 1.1.0.09, 1.1.1.06, 1.1.1.19
cisco
rv325 firmware
1.0.1.17, 1.0.2.03, 1.1.0.09, 1.1.1.06, 1.1.1.19

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-787

Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.

References