CVE-2024-40535
CVE-2024-40535 is a critical-severity vulnerability in Szlbt Lbt-t300-t400 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-121.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 1% (43rd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-38505
- Weakness: CWE-121
- Affected product: Szlbt Lbt-t300-t400 Firmware
- Published:
- Last modified:
Description
Shenzhen Libituo Technology Co., Ltd LBT-T300-T400 v3.2 was discovered to contain a stack overflow via the apn_name_3g parameter in the config_3g_para function.
Frequently asked questions
- What is CVE-2024-40535?
- Shenzhen Libituo Technology Co., Ltd LBT-T300-T400 v3.2 was discovered to contain a stack overflow via the apn_name_3g parameter in the config_3g_para function.
- How severe is CVE-2024-40535?
- CVE-2024-40535 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-2024-40535 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-40535?
- CVE-2024-40535 affects Szlbt Lbt-t300-t400 Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2024-40535?
- 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-2024-40535 have an EU (EUVD) identifier?
- Yes. CVE-2024-40535 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-38505.
- When was CVE-2024-40535 published?
- CVE-2024-40535 was published on 2024-07-16 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:szlbt:lbt-t300-t400_firmware:3.2:*:*:*:*:*:*:*
More vulnerabilities in Szlbt Lbt-t300-t400 Firmware
- CVE-2025-29570 — High (CVSS 7.8): An issue in Shenzhen Libituo Technology Co., Ltd LBT-T300-T400 v3.2 allows a local attacker to escalate privileges via…
- CVE-2024-32324 — High (CVSS 7.8): Buffer Overflow vulnerability in Shenzhen Libituo Technology Co., Ltd LBT-T300-T400 v.3.2 allows a local attacker to…
- CVE-2024-39181 — Medium (CVSS 6.5): Shenzhen Libituo Technology Co., Ltd LBT-T300-T400 v3.2 was discovered to contain a buffer overflow via the ApCliSsid…
- CVE-2024-40536 — Medium (CVSS 5.3): Shenzhen Libituo Technology Co., Ltd LBT-T300-T400 v3.2 were discovered to contain a stack overflow via the pin_3g_code…
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