# CVE-2019-25631: AIDA64 Business 5.99.4900 SEH Buffer Overflow via EggHunter

> Local attackers can execute arbitrary code via SEH buffer overflow in AIDA64 Business by injecting shellcode into specific fields.

- **Severity:** High 8.6 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 Mar 2026
- **Updated:** 15 Jul 2026
- **Also known as:** GHSA-j8pg-mgqw-f774

## What is CVE-2019-25631?

CVE-2019-25631 is a high-severity memory corruption vulnerability in AIDA64 Business, published on 24 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

AIDA64 Business 5.99.4900 contains a structured exception handling buffer overflow vulnerability that allows local attackers to execute arbitrary code by overwriting SEH pointers with malicious shellcode. Attackers can inject egg hunter shellcode through the SMTP display name field in preferences or report wizard functionality to trigger the overflow and execute code with application privileges.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2019-25631?

It affects 1 product.


Products: Aida64 Aida64.

## How do I fix CVE-2019-25631?

No fix has been published for CVE-2019-25631 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-25631 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25631 exists.

## Other vulnerabilities in AIDA64 Business

- [CVE-2019-25629](https://insights.sbomify.com/CVE-2019-25629/): AIDA64 Extreme 5.99.4900 SEH Buffer Overflow via Logging (high 8.6)
- [CVE-2019-25633](https://insights.sbomify.com/CVE-2019-25633/): AIDA64 Extreme 5.99.4900 SEH Buffer Overflow via EggHunter (high 8.6)
- [CVE-2019-25360](https://insights.sbomify.com/CVE-2019-25360/): Aida64 6.10.5200 - Buffer Overflow (high 8.4)
- [CVE-2020-19513](https://insights.sbomify.com/CVE-2020-19513/): Memory corruption in n/a (high 7.8)
- [CVE-2019-7244](https://insights.sbomify.com/CVE-2019-7244/): Privilege escalation in n/a (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-25631 and fix it if it is affected.

What it is: CVE-2019-25631 is a high-severity memory corruption vulnerability in AIDA64 Business, published on 24 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25631 exists.

Affected product: AIDA64 Business. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2019-25631/ (Markdown: https://insights.sbomify.com/CVE-2019-25631/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-25631
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-25631
- OSV: https://osv.dev/vulnerability/CVE-2019-25631

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-25631/
Summaries are generated and may contain mistakes; the official description above is the record.