How severe is CVE-2020-29596?

CVE-2020-29596 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-2020-29596 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-29596?

CVE-2020-29596 affects Miniweb Http Server Project Miniweb Http Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-29596?

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-2020-29596 published?

CVE-2020-29596 was published on 2020-12-21 and last updated on 2026-06-17.

CVE-2020-29596

CVE-2020-29596 is a high-severity vulnerability in Miniweb Http Server Project Miniweb Http Server 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)
CVSS v2: 5.0
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Miniweb Http Server Project Miniweb Http Server
Published: 2020-12-21
Last modified: 2026-06-17

Description

MiniWeb HTTP server 0.8.19 allows remote attackers to cause a denial of service (daemon crash) via a long name for the first parameter in a POST request.

Frequently asked questions

What is CVE-2020-29596?: MiniWeb HTTP server 0.8.19 allows remote attackers to cause a denial of service (daemon crash) via a long name for the first parameter in a POST request.
How severe is CVE-2020-29596?: CVE-2020-29596 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-2020-29596 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-29596?: CVE-2020-29596 affects Miniweb Http Server Project Miniweb Http Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-29596?: 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-2020-29596 published?: CVE-2020-29596 was published on 2020-12-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:miniweb_http_server_project:miniweb_http_server:0.8.19:*:*:*:*:*:*:*

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