How severe is CVE-2026-26736?

CVE-2026-26736 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-26736 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-26736?

CVE-2026-26736 affects Totolink A3002ru Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-26736?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-26736 have an EU (EUVD) identifier?

Yes. CVE-2026-26736 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7832.

When was CVE-2026-26736 published?

CVE-2026-26736 was published on 2026-02-17 and last updated on 2026-06-17.

CVE-2026-26736

CVE-2026-26736 is a high-severity vulnerability in Totolink A3002ru Firmware with a CVSS 3.x base score of 8.8. 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-787.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-7832
Weakness: CWE-787
Affected product: Totolink A3002ru Firmware
Published: 2026-02-17
Last modified: 2026-06-17

Description

TOTOLINK A3002RU_V3 V3.0.0-B20220304.1804 was discovered to contain a stack-based buffer overflow via the static_ipv6 parameter in the formIpv6Setup function.

Frequently asked questions

What is CVE-2026-26736?: TOTOLINK A3002RU_V3 V3.0.0-B20220304.1804 was discovered to contain a stack-based buffer overflow via the static_ipv6 parameter in the formIpv6Setup function.
How severe is CVE-2026-26736?: CVE-2026-26736 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-26736 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-26736?: CVE-2026-26736 affects Totolink A3002ru Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-26736?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-26736 have an EU (EUVD) identifier?: Yes. CVE-2026-26736 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7832.
When was CVE-2026-26736 published?: CVE-2026-26736 was published on 2026-02-17 and last updated on 2026-06-17.

References

https://github.com/0xmania/cve/tree/main/TOTOLINK-A3002RUV3.0-boa-formIpv6Setup-StackOverflow

Affected products (1)

cpe:2.3:o:totolink:a3002ru_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Totolink A3002ru Firmware

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