CVE-2025-63655

HIGHCVSS 7.5/10EPSS 7.40%

Last modified

CVE-2025-63655 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A NULL pointer dereference in the mk_http_range_parse function (mk_server/mk_http.c) of monkey commit f37e984 allows attackers to cause a Denial of Service (DoS) via sending a crafted HTTP request to the server.. EPSS estimates a 7.40% chance of exploitation in the next 30 days.

Description

A NULL pointer dereference in the mk_http_range_parse function (mk_server/mk_http.c) of monkey commit f37e984 allows attackers to cause a Denial of Service (DoS) via sending a crafted HTTP request to the server.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
7.40%

93.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Monkey-ProjectMonkey<= 1.8.5

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2025-63655?
A NULL pointer dereference in the mk_http_range_parse function (mk_server/mk_http.c) of monkey commit f37e984 allows attackers to cause a Denial of Service (DoS) via sending a crafted HTTP request to the server.
How severe is CVE-2025-63655?
CVE-2025-63655 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 7.40% probability of exploitation in the next 30 days.
How do I fix CVE-2025-63655?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-63655?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST