How severe is CVE-2026-0641?

CVE-2026-0641 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-2026-0641 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-0641?

CVE-2026-0641 affects Totolink Wa300 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-0641?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-0641 have an EU (EUVD) identifier?

Yes. CVE-2026-0641 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-0958.

When was CVE-2026-0641 published?

CVE-2026-0641 was published on 2026-01-06 and last updated on 2026-06-17.

CVE-2026-0641

CVE-2026-0641 is a medium-severity vulnerability in Totolink Wa300 Firmware 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: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-0958
Weakness: CWE-77
Affected product: Totolink Wa300 Firmware
Published: 2026-01-06
Last modified: 2026-06-17

Description

A security vulnerability has been detected in TOTOLINK WA300 5.2cu.7112_B20190227. This vulnerability affects the function sub_401510 of the file cstecgi.cgi. The manipulation of the argument UPLOAD_FILENAME leads to command injection. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used.

Frequently asked questions

What is CVE-2026-0641?: A security vulnerability has been detected in TOTOLINK WA300 5.2cu.7112_B20190227. This vulnerability affects the function sub_401510 of the file cstecgi.cgi. The manipulation of the argument UPLOAD_FILENAME leads to command injection. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used.
How severe is CVE-2026-0641?: CVE-2026-0641 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-2026-0641 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-0641?: CVE-2026-0641 affects Totolink Wa300 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-0641?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-0641 have an EU (EUVD) identifier?: Yes. CVE-2026-0641 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-0958.
When was CVE-2026-0641 published?: CVE-2026-0641 was published on 2026-01-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:totolink:wa300_firmware:5.2cu.7112_b20190227:*:*:*:*:*:*:*

More vulnerabilities in Totolink Wa300 Firmware

CVE-2026-4497 — High (CVSS 7.3): A vulnerability was determined in Totolink WA300 5.2cu.7112_B20190227. Affected by this issue is the function…
CVE-2026-2167 — Medium (CVSS 6.3): A vulnerability was detected in Totolink WA300 5.2cu.7112_B20190227. The impacted element is the function setAPNetwork…

All CVEs affecting Totolink Wa300 Firmware →

Other CWE-77 (Command Injection) vulnerabilities

CVE-2026-105484 — Critical (CVSS 10.0): A security vulnerability has been detected in TOTOLINK X6000R 9.4.0cu.652_B20230116. The impacted element is the…
CVE-2026-105134 — Critical (CVSS 10.0): A flaw has been found in Ahsay AhsayCBS up to 10.3.2. This vulnerability affects unknown code of the file…
CVE-2026-102240 — Critical (CVSS 10.0): A vulnerability was found in Netcore NAP930 0.1.241010.141410. This affects the function eval of the file…
CVE-2026-101076 — Critical (CVSS 10.0): A vulnerability was detected in Netcore NR289-GE 1.4.5102. This affects the function system of the file…
CVE-2026-101075 — Critical (CVSS 10.0): A security vulnerability has been detected in Netcore NR289-GE 1.4.5102. The impacted element is the function system of…
CVE-2026-101072 — Critical (CVSS 10.0): A vulnerability was identified in Netcore NR289-GE 1.4.5102. This issue affects the function system of the file…

Browse all CWE-77 (Command Injection) vulnerabilities →