How severe is CVE-2023-46566?

CVE-2023-46566 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-2023-46566 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2023-46566?

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-2023-46566 have an EU (EUVD) identifier?

Yes. CVE-2023-46566 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-50771.

When was CVE-2023-46566 published?

CVE-2023-46566 was published on 2024-04-29 and last updated on 2026-06-17.

CVE-2023-46566

CVE-2023-46566 is a high-severity vulnerability with a CVSS 3.x base score of 7.5. 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-120.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-50771
Weakness: CWE-120
Published: 2024-04-29
Last modified: 2026-06-17

Description

Buffer Overflow vulnerability in msoulier tftpy commit 467017b844bf6e31745138a30e2509145b0c529c allows a remote attacker to cause a denial of service via the parse function in the TftpPacketFactory class.

Frequently asked questions

What is CVE-2023-46566?: Buffer Overflow vulnerability in msoulier tftpy commit 467017b844bf6e31745138a30e2509145b0c529c allows a remote attacker to cause a denial of service via the parse function in the TftpPacketFactory class.
How severe is CVE-2023-46566?: CVE-2023-46566 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-2023-46566 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2023-46566?: 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-2023-46566 have an EU (EUVD) identifier?: Yes. CVE-2023-46566 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-50771.
When was CVE-2023-46566 published?: CVE-2023-46566 was published on 2024-04-29 and last updated on 2026-06-17.

References

https://github.com/msoulier/tftpy/issues/140

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