CVE-2026-9511
CVE-2026-9511 is a medium-severity vulnerability with a CVSS 3.x base score of 6.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-77.
Key facts
- Severity: Medium (CVSS 3.x base score 6.3)
- CVSS v2: 6.5
- CVSS v4: 2.1
- EPSS exploit prediction: 1% (60th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-31760
- Weakness: CWE-77
- Published:
- Last modified:
Description
A vulnerability was identified in Totolink CA750-PoE 6.2c.510. This affects the function setWebWlanIdx of the file /cgi-bin/cstecgi.cgi of the component Setting Handler. Such manipulation of the argument webWlanIdx leads to os command injection. It is possible to launch the attack remotely. The exploit is publicly available and might be used.
Frequently asked questions
- What is CVE-2026-9511?
- A vulnerability was identified in Totolink CA750-PoE 6.2c.510. This affects the function setWebWlanIdx of the file /cgi-bin/cstecgi.cgi of the component Setting Handler. Such manipulation of the argument webWlanIdx leads to os command injection. It is possible to launch the attack remotely. The exploit is publicly available and might be used.
- How severe is CVE-2026-9511?
- CVE-2026-9511 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
- Is CVE-2026-9511 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-9511?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-9511 have an EU (EUVD) identifier?
- Yes. CVE-2026-9511 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31760.
- When was CVE-2026-9511 published?
- CVE-2026-9511 was published on 2026-05-25 and last updated on 2026-06-17.
References
- https://github.com/wudipjq/my_vuln/blob/main/totolink4/vuln_49/49.md
- https://vuldb.com/submit/813922
- https://vuldb.com/vuln/365511
- https://vuldb.com/vuln/365511/cti
- https://www.totolink.net/
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