CVE-2026-0731
CVE-2026-0731 is a medium-severity vulnerability in Totolink Wa1200-poe with a CVSS 3.x base score of 5.3. 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-476.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- CVSS v2: 5.0
- CVSS v4: 5.5
- EPSS exploit prediction: 1% (45th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-1818
- Weakness: CWE-476
- Affected product: Totolink Wa1200-poe
- Published:
- Last modified:
Description
A vulnerability has been found in TOTOLINK WA1200 5.9c.2914. The impacted element is an unknown function of the file cstecgi.cgi of the component HTTP Request Handler. The manipulation leads to null pointer dereference. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used.
Frequently asked questions
- What is CVE-2026-0731?
- A vulnerability has been found in TOTOLINK WA1200 5.9c.2914. The impacted element is an unknown function of the file cstecgi.cgi of the component HTTP Request Handler. The manipulation leads to null pointer dereference. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used.
- How severe is CVE-2026-0731?
- CVE-2026-0731 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
- Is CVE-2026-0731 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-0731?
- CVE-2026-0731 primarily affects Totolink Wa1200-poe. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2026-0731?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-0731 have an EU (EUVD) identifier?
- Yes. CVE-2026-0731 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1818.
- When was CVE-2026-0731 published?
- CVE-2026-0731 was published on 2026-01-08 and last updated on 2026-06-17.
References
- https://github.com/JackWesleyy/CVE/blob/main/WA1200/TOTOLINK%20WA1200%20NULL%20Pointer%20Dereference%20Vulnerability.md
- https://github.com/JackWesleyy/CVE/blob/main/WA1200/TOTOLINK%20WA1200%20NULL%20Pointer%20Dereference%20Vulnerability.md#poc
- https://vuldb.com/?ctiid.340128
- https://vuldb.com/?id.340128
- https://vuldb.com/?submit.733249
- https://www.totolink.net/
Affected products (2)
- cpe:2.3:h:totolink:wa1200-poe:*:*:*:*:*:*:*:*
- cpe:2.3:o:totolink:wa1200-poe_firmware:5.9c.2914:*:*:*:*:*:*:*
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