Escargot: Release of Invalid Pointer or Reference
CVE-2026-47312 is a high-severity release of invalid pointer or reference vulnerability in Escargot from Samsung Open Source, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Escargot versions: 590345cc6258317c5da850d846ce6baaf2afc2d3. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.27% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of Escargot you run against the affected versions below, and install the vendor's latest release.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Samsung Open Source | Escargot | 590345cc6258317c5da850d846ce6baaf2afc2d3 | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- NoneNo data is disclosed.
- Integrity
- NoneNothing can be modified.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 5.5 | Medium | CNA (samsung.com) |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
Release of invalid pointer or reference vulnerability in Samsung Open Source Escargot allows Buffer Manipulation. This issue affects Escargot: 590345cc6258317c5da850d846ce6baaf2afc2d3.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Release of Invalid Pointer or Reference
The product attempts to return a memory resource to the system, but it calls the wrong release function or calls the appropriate release function incorrectly.
How developers prevent this class of flaw
- Only call matching memory management functions. Do not mix and match routines. For example, when you allocate a buffer with malloc(), dispose of the original pointer with free().
- When programming in C++, consider using smart pointers provided by the boost library to help correctly and consistently manage memory.
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, glibc in Linux provides protection against free of invalid pointers.
More Release of Invalid Pointer or Reference vulnerabilities (CWE-763)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Patches and release notes
- github.com/Samsung/escargot/pull/1565Issue Tracking
Other vulnerabilities in Escargot
- 8.8 High severity
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
- 9.8 Critical severity
- 7.5 High severity
Recent Release of Invalid Pointer or Reference vulnerabilities
- 9.8 Critical severity
- 9.8 Critical severity
- 8.7 High severity
- 7.5 High severity
- 8.8 High severity
- 7.8 High severity
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