# CVE-2023-1801: tcpdump: The SMB protocol decoder in tcpdump version 4.99.3 can perform an out-of-bounds write when decoding a crafted network...

CVE-2023-1801 is fixed in tcpdump on 1 platform, first by DEBIAN-CVE-2023-1801, released April 7, 2023. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-1801
- Priority: Routine
- CVSS: 6.5 (medium)
- EPSS: 0.0084
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 7, 2023

## Description

The SMB protocol decoder in tcpdump version 4.99.3 can perform an out-of-bounds write when decoding a crafted network packet.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | tcpdump Debian 13.5 (trixie) | 4.99.4-2 | [DEBIAN-CVE-2023-1801](https://patchblox.com/security/data/fix/linux/debian-cve-2023-1801.md) | Apr 7, 2023 |
| Linux | tcpdump Debian 14 | 4.99.4-2 | [DEBIAN-CVE-2023-1801](https://patchblox.com/security/data/fix/linux/debian-cve-2023-1801.md) | Apr 7, 2023 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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