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🛡️ CVE-2025-0665 — bootstrap-os

🟠 CVSS 7.0 — High ⚠️ Exploit Public NVD
7.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

libcurl would wrongly close the same eventfd file descriptor twice when taking

down a connection channel after having completed a threaded name resolve.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity low, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: High — the attacker first has to win a race, learn a secret or otherwise prepare the target.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: Low — limited, and the attacker does not choose what is affected.
  • Integrity impact: Low — limited, and the attacker does not choose what is affected.
  • Availability impact: High — total loss, or loss the attacker controls.

Affected software

CVE-2025-0665 is recorded against 7 packages.

  • bootstrap-os
  • curl
  • h300s-firmware
  • h410c-firmware
  • h410s-firmware
  • h500s-firmware
  • h700s-firmware

Timeline and source

Published on 5 February 2025 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. Record sourced from NVD.

References

curl.se
curl.se
hackerone.com
www.openwall.com
www.openwall.com
security.netapp.com

Other advisories for this package

bootstrap-os has other advisories on record. If you are patching this one, these are worth checking on the same host:

CVE-2025-0665 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity HIGH
CVSS Score 7.0
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
CWE N/A
Public Exploit ⚠️ Yes
Source NVD
Published 2025-02-05
Updated 2026-08-20
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
bootstrap-os — —
curl — —
h300s-firmware — —
h410c-firmware — —
h410s-firmware — —
h500s-firmware — —
h700s-firmware — —

Similar Threats

Exploit Protection

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CVE-2025-0665 carries CVSS 7.0 High rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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