Cyber Resilience

CVE-2024-20521

Medium

Published: 02 October 2024

Published
02 October 2024
Modified
08 October 2024
KEV Added
Patch
CVSS Score v3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
EPSS Score 0.0026 49.8th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-20521 is a medium-severity Stack-based Buffer Overflow (CWE-121) vulnerability in Cisco Rv042 Firmware. Its CVSS base score is 6.5 (Medium).

Operationally, ranked at the 49.8th percentile by exploit likelihood (below the median); 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 execute arbitrary code as the root user. To exploit this vulnerability, an attacker would need…

more

to have valid Administrator credentials on the affected device.   This vulnerability is due to improper validation of user-supplied input in the web-based management interface. An attacker could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute arbitrary code on the underlying operating system as the root user.

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