CVE-2020-27873: netgear ac2100_firmware Improper Access Control
Vulnerability summary
CVE-2020-27873 is a medium (CVSS 6.5) Improper Access Control vulnerability in netgear ac2100_firmware. EPSS estimates a 0.62% chance of exploitation in the next 30 days, higher than 48.6% of scored vulnerabilities.
Timeline
- 04-02-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of NETGEAR R7450 1.2.0.62_1.0.1 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the SOAP API endpoint, which listens on TCP port 80 by default. The issue results from the lack of proper access control. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-11559.
CVSS metrics
4 scores · 2 sources · 3 versions- NVDNIST6.5MediumCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
0.62%
Chance of exploitation in the next 30 days
Percentile
49%
Versus all other CVEs
30-day change
0.00 pp
From 0.62% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-284Improper Access ControlThe product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
- CWE-863Incorrect AuthorizationThe product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
Affected systems
Netgear19 products
- ac2100_firmware< 1.2.0.76
- ac2400_firmware< 1.2.0.76
- ac2600_firmware< 1.2.0.76
- r6020_firmware< 1.0.0.48
- r6080_firmware< 1.0.0.48
1 vendor · 19 products
References
2 links- kb.netgear.com/000062641/Security-Advisory-for-Password-Recovery-Vulnerabilities-on-Some-RoutersX Refsource MISCVendor Advisory