How severe is CVE-2024-28640?

CVE-2024-28640 has a CVSS 3.x base score of 7.5, rated high 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 high.

Is CVE-2024-28640 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-28640?

CVE-2024-28640 primarily affects Totolink X5000r Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-28640?

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-2024-28640 have an EU (EUVD) identifier?

Yes. CVE-2024-28640 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-25735.

When was CVE-2024-28640 published?

CVE-2024-28640 was published on 2024-03-16 and last updated on 2026-06-17.

CVE-2024-28640

CVE-2024-28640 is a high-severity vulnerability in Totolink X5000r Firmware with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 14% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-125.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 14% (96th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-25735
Weakness: CWE-125
Affected product: Totolink X5000r Firmware
Published: 2024-03-16
Last modified: 2026-06-17

Description

Buffer Overflow vulnerability in TOTOLink X5000R V9.1.0u.6118-B20201102 and A7000R V9.1.0u.6115-B20201022 allows a remote attacker to cause a denial of service (D0S) via the command field.

Frequently asked questions

What is CVE-2024-28640?: Buffer Overflow vulnerability in TOTOLink X5000R V9.1.0u.6118-B20201102 and A7000R V9.1.0u.6115-B20201022 allows a remote attacker to cause a denial of service (D0S) via the command field.
How severe is CVE-2024-28640?: CVE-2024-28640 has a CVSS 3.x base score of 7.5, rated high 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 high.
Is CVE-2024-28640 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-28640?: CVE-2024-28640 primarily affects Totolink X5000r Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-28640?: 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-2024-28640 have an EU (EUVD) identifier?: Yes. CVE-2024-28640 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-25735.
When was CVE-2024-28640 published?: CVE-2024-28640 was published on 2024-03-16 and last updated on 2026-06-17.

References

https://github.com/ZIKH26/CVE-information/blob/master/TOTOLINK/Vulnerability%20Information_2.md

Affected products (2)

cpe:2.3:o:totolink:x5000r_firmware:9.1.0u.6118_b20201102:*:*:*:*:*:*:*
cpe:2.3:o:totolink:a7000r_firmware:9.1.0u.6115_b20201022:*:*:*:*:*:*:*

More vulnerabilities in Totolink X5000r Firmware

CVE-2025-70327 — Critical (CVSS 9.8): TOTOLINK X5000R v9.1.0cu_2415_B20250515 contains an argument injection vulnerability in the setDiagnosisCfg handler of…
CVE-2025-13184 — Critical (CVSS 9.8): Unauthenticated Telnet enablement via cstecgi.cgi (auth bypass) leading to unauthenticated root login with a blank…
CVE-2024-32353 — Critical (CVSS 9.8): TOTOLINK X5000R V9.1.0cu.2350_B20230313 was discovered to contain a command injection vulnerability via the 'port'…
CVE-2024-28639 — Critical (CVSS 9.8): Buffer Overflow vulnerability in TOTOLink X5000R V9.1.0u.6118-B20201102 and A7000R V9.1.0u.6115-B20201022, allow remote…
CVE-2023-45984 — Critical (CVSS 9.8): TOTOLINK X5000R V9.1.0u.6118_B20201102 and TOTOLINK A7000R V9.1.0u.6115_B20201022 was discovered to contain a stack…
CVE-2023-36950 — Critical (CVSS 9.8): TOTOLINK X5000R V9.1.0u.6118_B20201102 and TOTOLINK A7000R V9.1.0u.6115_B20201022 was discovered to contain a stack…

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