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CVE-2025-63649

HIGH
7.5
CVSS Score
Published: January 29, 2026 at 12:00 AM UTC
Updated: June 17, 2026 at 09:53 AM UTC
1 product affected across 1 vendorMonkey

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Severity
HIGH7.5
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

An out-of-bounds read in the http_parser_transfer_encoding_chunked function (mk_server/mk_http_parser.c) of monkey commit f37e984 allows attackers to cause a Denial of Service (DoS) via sending a crafted POST request to the server.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

ExploitIssue Tracking
Source: cverecord
https://github.com/monkey/monkey/issues/426
ExploitThird Party Advisory
Source: cverecord
https://github.com/archersec/security-advisories/blob/master/monkey/monkey-advisory-2025.md

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-125

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