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VulnerabilityPublished

CVE-2026-61554: jm33-m0 emp3r0r · Uncontrolled Resource Consumption

Affects jm33-m0 emp3r0rSource CVE Database V5

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Not known to be exploited · CVSS 7.5 High : upgrade to 4.2.5 soon.

Data as of 30 Oct 2026, 20:25 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.7% chance of exploitation in 30 days – higher than 53% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 4.2.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 15 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade emp3r0r and jm33-m0/emp3r0r to 4.2.5.

Affected software

ProductAffectedFixed in
jm33-m0emp3r0rAffected
  • <4.2.5
Fixed in
  • 4.2.5
GitHubjm33-m0/emp3r0rpkg:github/jm33-m0/emp3r0rOther threatsAffected
  • <4.2.5
Fixed in
  • 4.2.5

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade emp3r0r to version 4.2.5 or later, where this vulnerability is patched. No other mitigation is indicated or required.

Description

CVE-2026-61554 is a high-severity vulnerability in the emp3r0r C2 software prior to version 4.2.5. The issue involves uncontrolled resource consumption due to the http_poll C2 transport accepting attacker-controlled HTTP polling sessions before authentication is completed. This allows a remote unauthenticated attacker to create arbitrary polling sessions and send request bodies that are processed by the C2 server, potentially exhausting server resources. The vulnerability is patched in version 4.2.5.

References

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