External risk intelligence

Samsung Escargot Integer Overflow Allows Buffer Overflow

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2026-25208

Escargot is an open-source library integrated into larger software systems. Whether it is deployed as a public-facing service or remains restricted to internal network segments depends entirely on the specific application architecture and implementation choices made by the user.

Integer Overflow

Samsung Escargot

2026-03-26

Halo Surface Signal: 3 out of 5 — possibly public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

An integer overflow vulnerability has been identified in Samsung's Open Source Escargot software, which could allow for buffer overflows. This is a critical severity issue that affects external network access.

Allows unexpected program behavior or crashes.
Critical severity requires executive awareness.
Confirm relevance and assess potential exposure.

Attack Path

How an attacker could exploit the issue

An attacker could reach this integer overflow vulnerability in Escargot by sending specially crafted data over the network. This could allow them to overflow buffers, potentially leading to a crash or remote code execution.

No access or privileges needed.
Specially crafted network data.
Potential for critical impact.

Live Threat

Current exploitation, exposure, and threat context

An integer overflow in Samsung's Escargot library could allow attackers to overwrite memory buffers. This may occur when processing specific, malformed inputs, potentially impacting the integrity and availability of services that utilize this library.

Escargot library's buffer memory.
Processing malformed inputs.
Service integrity and availability.

Operational Fix

Recommended remediation, mitigation, and detection steps

Teams responsible for managing applications that integrate the Samsung Escargot library should prioritize identifying its deployment and reachability. Initial steps involve confirming the asset's existence, assessing its exposure to external networks, and locating the accountable system owner to plan remediation based on risk.

Confirm asset ownership and scope.
Verify external reachability and impact.
Plan risk-based remediation actions.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

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Frequently asked questions

What is Samsung Escargot?

Samsung Escargot is an open-source library that developers incorporate into larger software systems. It functions as a building block for applications to handle specific data processing tasks, meaning it is not a standalone application but a component residing inside other software products.

What does CVE-2026-25208 mean?

This CVE describes an integer overflow, which is a weakness class (CWE-190) where a program attempts to calculate a number too large for its assigned memory space. In this case, that miscalculation allows an attacker to overflow a buffer, potentially leading to unauthorized memory access or system instability.

How does an attacker trigger this vulnerability?

An attacker triggers this by sending specially crafted, malformed data over the network to a system using the affected library. This vulnerability is not triggered by standard, legitimate application traffic; it requires inputs specifically designed to exploit the faulty calculation.

Is my system at risk?

According to Halo Surface Signal, risk depends on how your specific application uses the library. If the component processes data from the public internet, the potential for unauthorized access is higher. If the software is restricted to internal network segments, the threat is reduced.

What should I do if I use this software?

First, identify which of your applications integrate the Samsung Escargot library. Once located, verify if those systems are reachable from external networks. Finally, coordinate with system owners to prioritize updates as they become available based on the risk to your environment.

References

github.com/Samsung/escargot/pull/1554

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.