Quick answers
- Is CVE-2026-10758 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-10758 being exploited in the wild.
- How severe is CVE-2026-10758?
- High severity, with a CVSS score of 7.5, published 25 September 2026.
- Which products and versions are affected?
- Esri LERC 4.1.0 and earlier.
- Is there a fix for CVE-2026-10758?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-10758 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-10758?
- Check whether you run Esri LERC at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An integer overflow vulnerability in LERC's image decoding logic leads to a heap-based buffer write, allowing remote unauthenticated attackers to trigger the flaw by submitting specially crafted raster imagery. Exploitation requires only that an application processes untrusted LERC-formatted files; no user interaction or privileges are needed. Successful exploitation results in application crash and denial of service.
Affected products
- Esri LERC 4.1.0 and earlier
Timeline
- 2026-09-25: disclosed