🛡️ CVE-2023-3646 — eos

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 none, integrity none, 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:N/I:N/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: None.
• Integrity impact: None.
• Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2023-3646 is classified as CWE-125: Out-of-bounds Read. The code reads past the limits of a buffer, exposing adjacent memory contents or crashing the process.

Affected software

CVE-2023-3646 is recorded against 1 package.

• eos (from 4.29.0 up to 4.29.2f)

Timeline and source

Published on 29 August 2023 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

www.arista.com
www.arista.com

Other advisories for this package

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

• CVE-2026-7473 (5.8 Medium, published 5 Jun 2026)
• CVE-2024-6387 (8.1 High, published 1 Jul 2024)
• CVE-2023-24548 (5.3 Medium, published 29 Aug 2023)
• CVE-2023-24510 (7.5 High, published 5 Jun 2023)
• CVE-2023-24512 (8.8 High, published 25 Apr 2023)
• CVE-2023-24509 (9.3 Critical, published 13 Apr 2023)
• CVE-2023-24511 (5.3 Medium, published 12 Apr 2023)
• CVE-2023-0451 (7.5 High, published 26 Jan 2023)

Same weakness in other software

These advisories are the same class of weakness (CWE-125: Out-of-bounds Read) in other software:

• CVE-2017-12598 (8.0 High, published 9 Jul 2026)
• CVE-2019-16249 (published 9 Jul 2026)
• CVE-2022-23560 (8.0 High, published 9 Jul 2026)
• CVE-2019-14492 (8.0 High, published 9 Jul 2026)
• CVE-2022-23594 (8.0 High, published 9 Jul 2026)
• CVE-2017-18009 (8.0 High, published 9 Jul 2026)
• CVE-2019-14491 (8.0 High, published 9 Jul 2026)
• CVE-2022-21728 (8.0 High, published 9 Jul 2026)

Details

Affected Packages

References