CVE-2026-113389: Command Injection Flaw in DrayTek Vigor2960 Scores 9.4 on CVSS
A newly published critical vulnerability in DrayTek Vigor2960 carries a CVSS score of 9.4. Here is what is affected and how to respond.
Key points
- CVE-2026-113389 affects DrayTek Vigor2960.
- CVSS 9.4 (Critical).
- No exploitation confirmed yet.
DrayTek Vigor2960 is affected by CVE-2026-113389, a command injection that the National Vulnerability Database rates 9.4 out of 10.
At a glance
- CVE
- CVE-2026-113389
- Product
- DrayTek Vigor2960
- CVSS
- 9.4 Critical
- Weakness
- command injection
- Exploited
- No known exploitation
What is the vulnerability?
The NVD entry states: A vulnerability was detected in DrayTek Vigor2960 1.5.1.6 Revision 8218. Affected by this vulnerability is the function set_table of the file /cgi-bin/mainfunction.cgi of the component CGI Process. The manipulation of the argument sectiontype results in command injection. The attack may be launched remotely. The exploit is now public and may be used. The vendor explains: "2960 1.5.1.7 has corrected many security issues. And 2960 is EoS with limited support, only major issues would be reviewed(e.g. unauthenticated vuln.)". This vulnerability only affects products that are no longer supported by the maintainer.
Affected versions
| Vendor | Product | Versions |
|---|---|---|
| Draytek | Vigor2960 | 1.5.1.6 Revision 8218 |
Is it being exploited?
There is no public confirmation of exploitation at the time of publication. It does not appear in CISA's Known Exploited Vulnerabilities catalog. We will update this report if that changes.
What should you do?
- Identify whether the affected product and versions run in your environment.
- Apply the vendor update listed in the advisory as soon as it is available.
- Limit network exposure of the affected service until it is patched.
- Monitor the vendor advisory for updated guidance or exploitation reports.
What to do and how to stay safe: CVE-2026-113389
- Vulnerability severity scores ignore your specific architecture and context.
- Exploitability depends on network exposure and user behavior, not just code flaws.
- Prioritization requires continuous asset inventory and threat intelligence alignment.
Risk-based vulnerability management focuses your limited resources on the flaws that actually threaten your business. Start by mapping your critical assets and checking for active exploits to prioritize your backlog.
Step-by-step guide: Risk-Based Vulnerability Management: Prioritize Fixes by Actual Danger
General security guidance from the Threat Times newsroom. It is not confirmed advice from the organisations named in this story.
Frequently asked questions
What is CVE-2026-113389?
CVE-2026-113389 is a command injection vulnerability in DrayTek Vigor2960.
How severe is CVE-2026-113389?
It has a CVSS score of 9.4 Critical.
Is CVE-2026-113389 being exploited?
There is no public confirmation of exploitation at the time of publication.
