How severe is CVE-2023-38434?

CVE-2023-38434 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-2023-38434 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-38434?

CVE-2023-38434 affects Xhttp Project Xhttp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-38434?

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-2023-38434 published?

CVE-2023-38434 was published on 2023-07-18 and last updated on 2026-06-17.

CVE-2023-38434

CVE-2023-38434 is a high-severity vulnerability in Xhttp Project Xhttp 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-415.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-415
Affected product: Xhttp Project Xhttp
Published: 2023-07-18
Last modified: 2026-06-17

Description

xHTTP 72f812d has a double free in close_connection in xhttp.c via a malformed HTTP request method.

Frequently asked questions

What is CVE-2023-38434?: xHTTP 72f812d has a double free in close_connection in xhttp.c via a malformed HTTP request method.
How severe is CVE-2023-38434?: CVE-2023-38434 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-2023-38434 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-38434?: CVE-2023-38434 affects Xhttp Project Xhttp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-38434?: 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-2023-38434 published?: CVE-2023-38434 was published on 2023-07-18 and last updated on 2026-06-17.

References

https://github.com/cozis/xHTTP/issues/1

Affected products (1)

cpe:2.3:a:xhttp_project:xhttp:-:*:*:*:*:*:*:*

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