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CVE-2023-49417VulnerabilityPublished Updated

CVE-2023-49417: n/a

Source CVE Database V5

0

Not known to be exploited · CVSS 9.8 Critical.

Data as of 26 Oct 2026, 08:30 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.8% chance of exploitation in 30 days – higher than 58% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Dec 2023

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

AI-suggested

Organizations should first identify if they are using TOTOLink A7000R routers with the vulnerable firmware version 9.1.0u.6115_B20201022. Immediate mitigation steps include isolating these devices from critical network segments and restricting remote management access to trusted IP addresses only. Network administrators should implement strict firewall rules to block unsolicited inbound traffic to router management interfaces. Monitoring network traffic for unusual patterns or signs of exploitation attempts is advisable. If possible, disable any unnecessary services or features related to the setOpModeCfg functionality to reduce attack surface. As a longer-term strategy, consider replacing vulnerable devices with models from vendors with robust security update policies. Employ network segmentation to limit the impact of compromised devices and use intrusion detection/prevention systems (IDS/IPS) to detect exploitation attempts. Regularly update router firmware once patches are released and maintain an inventory of network devices to facilitate rapid response to vulnerabilities.

Description

TOTOLink A7000R V9.1.0u.6115_B20201022 has a stack overflow vulnerability via setOpModeCfg.

References

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