How severe is CVE-2020-26130?

CVE-2020-26130 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-26130 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-26130?

CVE-2020-26130 primarily affects Open Tftp Server Project Open Tftp Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-26130?

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.

When was CVE-2020-26130 published?

CVE-2020-26130 was published on 2020-10-28 and last updated on 2026-06-17.

CVE-2020-26130

CVE-2020-26130 is a high-severity vulnerability in Open Tftp Server Project Open Tftp Server with a CVSS 3.x base score of 7.8. 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-732.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Open Tftp Server Project Open Tftp Server
Published: 2020-10-28
Last modified: 2026-06-17

Description

Issues were discovered in Open TFTP Server multithreaded 1.66 and Open TFTP Server single port 1.66. Due to insufficient access restrictions in the default installation directory, an attacker can elevate privileges by replacing the OpenTFTPServerMT.exe or the OpenTFTPServerSP.exe binary.

Frequently asked questions

What is CVE-2020-26130?: Issues were discovered in Open TFTP Server multithreaded 1.66 and Open TFTP Server single port 1.66. Due to insufficient access restrictions in the default installation directory, an attacker can elevate privileges by replacing the OpenTFTPServerMT.exe or the OpenTFTPServerSP.exe binary.
How severe is CVE-2020-26130?: CVE-2020-26130 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-26130 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-26130?: CVE-2020-26130 primarily affects Open Tftp Server Project Open Tftp Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-26130?: 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.
When was CVE-2020-26130 published?: CVE-2020-26130 was published on 2020-10-28 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:open_tftp_server_project:open_tftp_server:1.66:*:*:*:mt:*:*:*
cpe:2.3:a:open_tftp_server_project:open_tftp_server:1.66:*:*:*:sp:*:*:*

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