← Vulnerability feed

Vulnerability record · CVE-2022-4499 · published 11 January 2023

CVE-2022-4499: Tp-link archer c5 firmware observable discrepancy vulnerability

Tp Link · Archer C5 Firmware

TP-Link routers, Archer C5 and WR710N-V1, using the latest software, the strcmp function used for checking credentials in httpd, is susceptible to a side-channel attack. By measuring the response time of the httpd process, an attacker could guess each byte of the username and password.

7.5 CVSS 3.1 High EPSS 0.71% · top 48.4% CWE-203 · Observable discrepancy
7.5CVSS 3.1 base score
0.71%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

TP-Link routers, Archer C5 and WR710N-V1, using the latest software, the strcmp function used for checking credentials in httpd, is susceptible to a side-channel attack. By measuring the response time of the httpd process, an attacker could guess each byte of the username and password.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://kb.cert.org/vuls/id/572615 Third Party AdvisoryVDB Entry
https://kb.cert.org/vuls/id/572615 Third Party AdvisoryVDB Entry
https://www.kb.cert.org/vuls/id/572615

Track CVE-2022-4499 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2015-3035TP-Link router directory traversal allows unauthenticated file readA path traversal flaw in the web interface of multiple TP-Link Archer and TL-WR/WDR router models lets a remote attacker read arbitrary files by plac…KEVEPSS 84%analysed6.5CVE-2023-50224TP-Link router httpd authentication bypass exposes stored credentialsThe httpd service on affected TP-Link router firmware contains an improper authentication flaw (CWE-290) that lets a network-adjacent attacker bypass…KEVEPSS 16%analysed9.8CVE-2022-4498Tp-link archer c5 firmware out-of-bounds write vulnerabilityIn TP-Link routers, Archer C5 and WR710N-V1, running the latest available code, when receiving HTTP Basic Authentication the httpd service can be sen…EPSS 1.8%9.8CVE-2020-35575Tp-link wa901nd firmware vulnerabilityA password-disclosure issue in the web interface on certain TP-Link devices allows a remote attacker to get full administrative access to the web pan…EPSS 7.6%7.2CVE-2018-19537Tp-link archer c5 firmware unrestricted file upload vulnerabilityTP-Link Archer C5 devices through V2_160201_US allow remote command execution via shell metacharacters on the wan_dyn_hostname line of a configuratio…EPSS 6.0%5.3CVE-2024-39891Twilio Authy API phone number enumeration via observable discrepancyAn unauthenticated endpoint in the Twilio Authy API, reachable through Authy Android before 25.1.0 and Authy iOS before 26.1.0, accepted streams of p…KEVEPSS 1.7%analysed

Source: NIST National Vulnerability Database (record CVE-2022-4499), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.