CVE-2024-34195
CVE-2024-34195 is a critical-severity vulnerability in Totolink A3002r Firmware with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 1% (57th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-34676
- Weakness: CWE-787
- Affected product: Totolink A3002r Firmware
- Published:
- Last modified:
Description
TOTOLINK AC1200 Wireless Router A3002R Firmware V1.1.1-B20200824 is vulnerable to Buffer Overflow. In the boa server program's CGI handling function formWlEncrypt, there is a lack of length restriction on the wlan_ssid field. This oversight leads to potential buffer overflow under specific circumstances. For instance, by invoking the formWlanRedirect function with specific parameters to alter wlan_idx's value and subsequently invoking the formWlEncrypt function, an attacker can trigger buffer overflow, enabling arbitrary command execution or denial of service attacks.
Frequently asked questions
- What is CVE-2024-34195?
- TOTOLINK AC1200 Wireless Router A3002R Firmware V1.1.1-B20200824 is vulnerable to Buffer Overflow. In the boa server program's CGI handling function formWlEncrypt, there is a lack of length restriction on the wlan_ssid field. This oversight leads to potential buffer overflow under specific circumstances. For instance, by invoking the formWlanRedirect function with specific parameters to alter wlan_idx's value and subsequently invoking the formWlEncrypt function, an attacker can trigger buffer overflow, enabling arbitrary command execution or denial of service attacks.
- How severe is CVE-2024-34195?
- CVE-2024-34195 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2024-34195 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-34195?
- CVE-2024-34195 affects Totolink A3002r Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2024-34195?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2024-34195 have an EU (EUVD) identifier?
- Yes. CVE-2024-34195 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-34676.
- When was CVE-2024-34195 published?
- CVE-2024-34195 was published on 2024-08-28 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:totolink:a3002r_firmware:1.1.1-b20200824:*:*:*:*:*:*:*
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- CVE-2025-45858 — Critical (CVSS 9.8): TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a command injection vulnerability via the FUN_00459fdc…
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