CVE-2026-8276Public exploitNetwork attack vector

Unauthenticated process crash via capability-string indexing

Published May 11, 2026 · Updated May 11, 2026

Integer coercion error in bettercap 2.41.0 through 2.41.5 allows remote attackers to crash the process via a crafted MySQL handshake. The MySQL server handler formats client capability flags with an eight-bit minimum, then indexes offset 8 even when the resulting string is only eight bytes long. The mysql.server module must be active and network-reachable; an unauthenticated client can trigger an unrecovered panic that terminates the entire process.

CVSS severityUnavailable
Unscored
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer coercion error in bettercap 2.41.0 through 2.41.5 allows remote attackers to crash the process via a crafted MySQL handshake. The MySQL server handler formats client capability flags with an eight-bit minimum, then indexes offset 8 even when the resulting string is only eight bytes long. The mysql.server module must be active and network-reachable; an unauthenticated client can trigger an unrecovered panic that terminates the entire process.

The record

CVE
CVE-2026-8276
Published
May 11, 2026
Updated
May 11, 2026
Vendor
bettercap
Product
bettercap
Classifications
CWE-189, CWE-192, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 11, 2026CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.41.0
  2. Affected versionversion=2.41.1
  3. Affected versionversion=2.41.2
  4. Affected versionversion=2.41.3
  5. Affected versionversion=2.41.4
  6. Affected versionversion=2.41.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

bettercap · bettercapversion=2.41.0; version=2.41.1; version=2.41.2; version=2.41.3; version=2.41.4; version=2.41.5

Published CVSS scores

3.7VulDBCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
3.7VulDBCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
2.6VulDBAV:N/AC:H/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:C
6.3VulDBCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-189Numeric Errors
CWE-192Integer Coercion Error
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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