Signal is active with 1 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.3.0 through 3.3.6 and 3.4.0 through 3.4.4, a heap-buffer-overflow (OOB read) occurs in the `istream_nonparallel_read` function in `ImfContextInit.cpp` when parsing a malformed EXR file through a memory-mapped `IStream`. A signed integer subtraction produces a negative value that is implicitly converted to `size_t`, resulting in a massive length being passed to `memcpy`. Versions 3.3.7 and 3.4.5 contain a patch.
Priority
LOW
Exploitation
NONE
PoC
YES
Patch
AVAILABLE
Momentum
STABLE
If you run products in this scope, you should treat this CVE as relevant to your environment.
| Date | Total | Labels |
|---|
| 2026-02-24 | 2 | Disclosure1General1 |
| 2026-03-17 | 1 | Patch1 |
| 2026-04-07 | 1 | Disclosure1 |
We’re seeing CVEs like CVE-2026-26981, CVE-2026-5602, and CVE-2026-5603 already flagged by our one-day scanner before most teams even notice them. Here’s the uncomfortable truth: Some of these aren’t sophisticated breaches. They’re basic failures. 🧵
Post summary
The tweet announces early detection of several 2026 CVEs by a scanner, but provides no exploit, patch, or technical details.
CVE-2026-26981 OpenEXR Heap Buffer Overflow Vulnerability in Versions 3.3.0-3.3.6 and 3.4.0-3.4.4 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-26981
Post summary
The text announces a heap buffer overflow vulnerability in OpenEXR versions 3.3.0-3.3.6 and 3.4.0-3.4.4, providing basic technical details but no PoC, exploit, or patch information.
Fedora releases security updates for MinGW OpenEXR, addressing CVE-2026-26981 (DoS via heap-buffer overflow) and CVE-2026-27622 (RCE via integer overflow). Update to 3.3.8 or 3.4.6. #Vulnerability https://threatcluster.io/cluster/critical-denial-of-service-vulnerabilities-in-fedoras-mingw--a8c7c9f9
Post summary
Fedora announced security updates for MinGW OpenEXR, addressing two CVEs—one causing DoS via heap‑buffer overflow and another enabling RCE via integer overflow—by upgrading to specific patched versions.
CVE-2026-26981 OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.3.0 thr… https://www.cve.org/CVERecord?id=CVE-2026-26981
Post summary
The snippet merely references CVE‑2026‑26981 and links to its CVE record, without providing any technical, exploit, or mitigation details.
1 of 1 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | openexr | openexr | - | - | - |