Cyber Resilience

CVE-2021-1472

MediumPublic PoC

Published: 08 April 2021

Published
08 April 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS Score 0.9129 99.7th percentile
Risk Priority 65 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-1472 is a medium-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Cisco Rv160 Firmware. Its CVSS base score is 5.3 (Medium).

Operationally, ranked in the top 0.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

Multiple vulnerabilities exist in the web-based management interface of Cisco Small Business RV Series Routers. A remote attacker could execute arbitrary commands or bypass authentication and upload files on an affected device. For more information about these vulnerabilities, see the…

more

Details section of this advisory.

CWE(s)

Related Threats

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

Affected Assets

cisco
rv160 firmware
≤ 1.0.01.03
cisco
rv160w firmware
≤ 1.0.01.03
cisco
rv260 firmware
≤ 1.0.01.03
cisco
rv260p firmware
≤ 1.0.01.03
cisco
rv260w firmware
≤ 1.0.01.03
cisco
rv340 firmware
≤ 1.0.03.21
cisco
rv340w firmware
≤ 1.0.03.21
cisco
rv345 firmware
≤ 1.0.03.21
cisco
rv345p firmware
≤ 1.0.03.21

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-119 CWE-287

Ongoing control assessments and code testing (static/dynamic analysis, fuzzing) surface memory buffer restriction failures, which are then remediated before release.

addresses: CWE-287 CWE-119

Detects unauthorized use and connections stemming from authentication bypass or failure.

addresses: CWE-287

Detects unauthorized successful logons resulting from improper authentication implementations.

addresses: CWE-287

Documented procedures ensure personnel are trained on authentication mechanisms, tangibly lowering the risk of improper authentication being exploited.

addresses: CWE-287

Security awareness training instructs users on secure authentication practices and avoiding credential compromise.

addresses: CWE-287

Training on authentication mechanisms and best practices decreases the occurrence of improper authentication.

addresses: CWE-287

Non-repudiation requires strong authentication mechanisms to irrefutably attribute performed actions to specific individuals or processes.

addresses: CWE-287

Session content review can reveal authentication bypasses or failures in session establishment.

References