CVE-2026-47714
Medium · 6.1CVSS
6.1
EPSS
0.2%
Published
Jul 21, 2026
CISA due date
—
Cloudanix analysis
There is not enough public information yet to know what systems are affected or what action is required, but current exploitation risk appears low.
- Exploitation
- Other
- Attacker needs
- Other
- Complexity
- Theoretical
- Impact
- Other
- Component
- Other
- Class
- Other
- Remediation
- No Fix Yet
- Effort
- Other
- Patch risk
- Other
What it actually does
Public technical details for this issue are not available in the provided data. The vulnerability is classified only as "Other," with no affected product, vulnerable component, attack vector, prerequisite condition, or fixed version identified. Because of that, the precise technical effect—such as code execution, privilege escalation, data disclosure, denial of service, authentication bypass, or integrity impact—cannot be reliably determined from the available information.
Why it matters to the business
At this time, the measurable business risk appears low based on the available intelligence: EPSS is very low, there is no known CISA KEV listing, no ransomware association, and no exploit maturity is reported. However, because no affected products or fixes are listed, organizations should treat this as an intelligence gap rather than proof of non-exposure, and should monitor vendor advisories or asset intelligence for updates.
How an attack unfolds
No credible end-to-end exploitation narrative can be established from the provided information. An attacker would typically need to identify a vulnerable product and version, understand the vulnerable component or input path, craft a trigger condition, and then achieve the vulnerability-specific outcome. None of those details are currently available, and there is no indication of public exploit code, active exploitation, named threat actor use, or ransomware activity.
How to fix it
No affected products or fixed versions were provided, so there is no specific patch or configuration change to apply based on the current data. Security teams should monitor authoritative vendor advisories, package repositories, operating system security bulletins, and vulnerability intelligence feeds for product attribution and fixed-version information. Once affected software is identified, upgrade to the vendor-provided fixed release, remove or disable the vulnerable component if it is not required, and apply compensating controls such as network restriction, authentication enforcement, feature disablement, or input filtering where applicable.
How to confirm the fix worked
Validate exposure by searching software inventories, SBOMs, vulnerability scanners, package manifests, and endpoint/software asset data once affected product names and vulnerable version ranges become available. Confirm remediation by verifying that impacted assets are upgraded to the vendor-fixed version or that the vulnerable component is removed or disabled. Because no product or fixed version is currently known, scanners may not yet provide reliable detection, and a negative scan result should not be treated as definitive until vendor and scanner coverage are confirmed.
Typical attack path
- Identify whether any deployed product is later confirmed to be affected by the vulnerability.
- Determine the vulnerable version, component, interface, or feature once vendor details are published.
- Reach the vulnerable attack surface, such as a network service, local component, API, parser, or administrative function, depending on future disclosure details.
- Trigger the vulnerability using the required input, request, file, or workflow once technical details are known.
- Leverage the resulting impact, if any, such as service disruption, unauthorized access, data exposure, or privilege gain.
How to detect it
There are no product-specific exploitation indicators available from the provided data. Until affected products and attack techniques are known, detection should focus on general anomaly review around systems later found to be vulnerable: authentication logs, application error logs, web/API access logs, endpoint process creation events, file integrity monitoring, network connection records, and vulnerability scanner results. If vendor advisories later describe an exploit pattern, create targeted detections for unusual requests, crashes, spawned child processes, suspicious file writes, privilege changes, or unauthorized configuration changes associated with the affected component.
What your security team should do
- Track this CVE in vulnerability intelligence and vendor advisory feeds until affected products and fixed versions are published.
- Do not prioritize emergency patching solely on the current record unless later intelligence identifies affected business-critical assets or active exploitation.
- Prepare to map the CVE to internal software inventory, SBOMs, and third-party dependencies once product attribution is available.
- Monitor for changes in exploit maturity, EPSS trend, KEV status, ransomware association, or threat actor reporting.
- If affected software is later identified, prioritize remediation based on internet exposure, privilege level, data sensitivity, and business criticality.
- Ensure vulnerability scanners and software composition analysis tools are updated so they can detect the issue if product-specific signatures become available.
The record
libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, the inline mask parsing code in `libheif/region.cc` contains an integer overflow. Both `width` and `height` are `unsigned int` (32-bit) values parsed from the HEIF file. Their product can exceed `UINT32_MAX`, wrapping to a small value before the division by 8. This causes an undersized buffer allocation, leading to out-of-bounds memory access when the mask data is later interpreted as a `width x height` bitmap. Version 1.22.0 patches the issue.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| openSUSE:Leap 16.0 | libheif | 0 | 1.23.0-160000.1.1 |
| openSUSE:Tumbleweed | libheif | 0 | 1.22.2-1.1 |
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