HighPublic exploit

SEH Buffer Overflow in AIDA64 Business 5.99.4900

IdentifiersCVE-2019-25631CWE-787· Out-of-bounds Write

CVE-2019-25631 is a structured exception handling (SEH) buffer overflow vulnerability in AIDA64 Business 5.99.4900. The flaw is triggered via the SMTP display name field exposed through the application's preferences or report wizard functionality. An attacker can supply crafted input containing egg hunter shellcode and overwrite SEH pointers, resulting in redirection of execution flow to attacker-controlled payloads. Successful exploitation yields arbitrary code execution in the context of the AIDA64 Business application.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows arbitrary code execution with the privileges of the vulnerable AIDA64 Business process. Given the assigned impact metrics, compromise can result in high confidentiality, integrity, and availability impact, including execution of attacker-supplied payloads, modification of local data accessible to the application, and potential disruption of the application or host environment reachable with those privileges.

Mitigation

If you can’t patch tonight, do this now.

Until a fixed version is deployed, restrict local access to systems running AIDA64 Business 5.99.4900, especially by untrusted users. Avoid using or populating the SMTP display name field in preferences or report wizard workflows with untrusted input. Where possible, apply application control, exploit mitigations such as DEP/ASLR/SEHOP if supported and effective in the environment, and monitor for abnormal crashes or exploit attempts involving the affected input fields.

Remediation

Patch, then assume compromise.

Upgrade from AIDA64 Business 5.99.4900 to a fixed version if one is available from the vendor. If no patched release is currently identified in the provided content, organizations should obtain vendor guidance from AIDA64 and avoid continued use of the affected version in exposed or untrusted workflows. Validate that any updated release fully addresses the unsafe handling of the SMTP display name field in preferences and report wizard code paths.

PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType

Aida64Aida64application

FinalWireAida64 Businessapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

5 SOURCESView more in app

cvefeed high severityNews

Mar 24, 2026

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

A local structured exception handling (SEH) buffer overflow in AIDA64 Business 5.99.4900 that can allow arbitrary code execution via malicious shellcode injected through the SMTP display name field.

What this page doesn’t show

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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity4

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES

MITRE CVE

cve.org · CVE-2019-25631

NVD

nvd.nist.gov/vuln/detail/CVE-2019-25631

MITRE CWE · CWE-787

Out-of-bounds Write

Third Party Advisory

exploit-db.com/exploits/46639

Third Party Advisory

vulncheck.com/advisories/aida64-business-seh-buffer-overflow-via-egghunter