CVE-2026-19815

HIGH 8.8

TOTOLINK A800R firewall.so cstecgi.cgi setParentalRules stack-based overflow

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

A flaw has been found in TOTOLINK A800R 4.1.2cu.5137_B20200730. Affected by this vulnerability is the function setParentalRules of the file /cgi-bin/cstecgi.cgi of the component firewall.so. Executing a manipulation of the argument urlKeyword can lead to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been published and may be used.

CWE	CWE-121 CWE-119
Vendor	totolink
Product	a800r
Published	Aug 14, 2026

Stay Ahead of the Next One

Get instant alerts for totolink a800r

Be the first to know when new high vulnerabilities affecting totolink a800r are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

TOTOLINK / A800R

4.1.2cu.5137_B20200730

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/389951 vuldb.com: https://vuldb.com/vuln/389951/cti vuldb.com: https://vuldb.com/cve/CVE-2026-19815 vuldb.com: https://vuldb.com/submit/869442 github.com: https://github.com/panda666-888/vuls/blob/main/totolink/a800r/setParentalRules.md totolink.net: https://www.totolink.net/

Credits

🔍 panda_0x1 (VulDB User)