CVE‑2026‑116508：TOTOLINK A950RG Device‑Information CGI infostat.cgi sub_402340 堆疊式緩衝區溢位漏洞
CVE-2026-116508 - TOTOLINK A950RG Device-Information CGI infostat.cgi sub_402340 stack-based overflow
summary_zh: - TOTOLINK A950RG 4.1.2cu.5268_B20221104 發現 sub_402340（位於 infostat.cgi）在 CONTENT_LENGTH 引數被操縱時會觸發 堆疊式緩衝區溢位，可遠端利用，且已公開 exploit。
A security flaw has been discovered in TOTOLINK A950RG 4.1.2cu.5268_B20221104. Affected by this issue is the function sub_402340 of the file infostat.cgi of the component Device-Information CGI. Performing a manipulation of the argument CONTENT_LENGTH results in stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks.
Impact
Affected Products
The following products are affected by CVE-2026-116508
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
| ID | Vendor | Product | Action |
|---|---|---|---|
| 1 | Totolink | a950rg_firmware | |
| 2 | Totolink | a950rg | |
| 3 | Totolink | a950rg |
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | HIGH | [email protected] | ||||
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 4.0 | CRITICAL | [email protected] |
Address stack-based buffer overflow in infostat.cgi by updating the affected device firmware.
- Update device firmware to the latest version.
- Apply vendor-provided patches for the infostat.cgi component.
- Restrict access to the Device-Information CGI interface.
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-116508.
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-116508 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-116508
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-116508 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-116508 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
十月. 26, 2026
Action Type Old Value New Value Added Description A security flaw has been discovered in TOTOLINK A950RG 4.1.2cu.5268_B20221104. Affected by this issue is the function sub_402340 of the file infostat.cgi of the component Device-Information CGI. Performing a manipulation of the argument CONTENT_LENGTH results in stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H Added CVSS V2 (AV:N/AC:L/Au:N/C:C/I:C/A:C) Added CWE CWE-119 Added CWE CWE-121 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/116xxx/CVE-2026-116508.json">CVE-2026-116508</a> Added Reference https://gist.github.com/H3rmesk1t/ad72def4ccc232757d4cbabf45da72cb Added Reference https://vuldb.com/cve/CVE-2026-116508 Added Reference https://vuldb.com/submit/1022557 Added Reference https://vuldb.com/vuln/426406 Added Reference https://vuldb.com/vuln/426406/cti Added Reference https://www.totolink.net/
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.