CVE-2025-12259 — Improper Restriction of Operations within the Bounds of a Memory Buffer in A3300r

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory BufferCWE-121 — Stack-based Buffer Overflow3 documents3 sources
Severity
7.4HIGHNVD
EPSS
0.4%
top 37.68%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Totolink A3300rTotolink A3300r Firmware
Timeline
PublishedOct 27

Description

A flaw has been found in TOTOLINK A3300R 17.0.0cu.557_B20221024. The affected element is the function setScheduleCfg of the file /cgi-bin/cstecgi.cgi of the component POST Parameter Handler. This manipulation of the argument recHour causes stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been published and may be used.

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Affected Packages2 packages

▶CVEListV5totolink/a3300r17.0.0cu.557_B20221024
▶NVDtotolink/a3300r_firmware17.0.0cu.557_b20221024

🔴Vulnerability Details

2
GHSA
GHSA-8gmh-6p83-rx7h: A flaw has been found in TOTOLINK A3300R 17↗2025-10-27
▶
CVEList
TOTOLINK A3300R POST Parameter cstecgi.cgi setScheduleCfg stack-based overflow↗2025-10-27
▶
CVE-2025-12259 — Totolink A3300r vulnerability | cvebase