CVE-2021-1321

CWE-121 — Stack-based Buffer OverflowCWE-1321 — Prototype PollutionCWE-915CWE-74CWE-84354 documents6 sources
Severity
7.2HIGH
EPSS
0.4%
top 37.09%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
7
Cisco Rv016 Multi-wan VPN Router FirmwareCisco Rv042 Dual WAN VPN Router FirmwareCisco Rv042g Dual Gigabit WAN VPN Router Firmware+4 more
Timeline
PublishedFeb 4
Latest updateSep 27

Description

Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could allow an authenticated, remote attacker to execute arbitrary code or cause an affected device to restart unexpectedly. These vulnerabilities are due to improper validation of user-supplied input in the web-based management interface. An attacker could exploit these vulnerabilities by sending crafted HTTP requests to an affected device. A successful ex…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HExploitability: 1.2 | Impact: 5.9

Affected Packages7 packages

🔴Vulnerability Details

49
GHSA
algoliasearch-helper is vulnerable to Prototype Pollution in _merge()↗2025-09-27
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GHSA
MrSwitch hello.js vulnerable to prototype pollution↗2023-08-11
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GHSA
Baobab vulnerable to Prototype Pollution↗2023-01-07
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GHSA
tree-kit vulnerable to Prototype Pollution↗2022-12-25
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GHSA
Starcounter-Jack JSON-Patch Prototype Pollution vulnerability↗2022-12-25
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📋Vendor Advisories

4
Red Hat
algoliasearch-helper: algoliasearch-helper prototype pollution↗2025-09-27
▶
Red Hat
async: Prototype Pollution in async↗2022-04-07
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Red Hat
set-getter: prototype pollution in ‘set-getter may lead to DoS↗2021-06-10
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Cisco
Cisco Small Business RV Series Routers Management Interface Remote Command Execution and Denial of Service Vulnerabilities↗2021-02-03
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CVE-2021-1321 (HIGH CVSS 7.2) | Multiple vulnerabilities in the web | cvebase.io