🛡️ CVE-2025-12839 on Debian 12 (Root.io) — rootio-openexr

🟠 CVSS 8.0 — High ✅ No Known Exploit OSV

8.0

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

CVE-2025-12839 in rootio-openexr - Patched by Root

Root has patched CVE-2025-12839 in the rootio-openexr package for Root:Debian:12. Multiple fixed versions available.

Distribution advisory

This page covers CVE-2025-12839 as tracked by Debian 12 (Root.io), for the package rootio-openexr. The fix is available in version 3.1.5-5.root.io.20; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

ROOT-OS-DEBIAN-12-CVE-2025-12839 is classified as CWE-122: Heap-based Buffer Overflow. A write past the end of a heap allocation corrupts allocator metadata or neighbouring objects.

Affected software

ROOT-OS-DEBIAN-12-CVE-2025-12839 is recorded against 1 package.

rootio-openexr (fixed in 3.1.5-5.root.io.20)

Timeline and source

Published on 10 April 2026 and last revised on 28 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

CVE-2025-12839 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Base record Debian Debian 11 (Root.io)Debian 13 (Root.io)Ubuntu

Details

Severity HIGH

CVSS Score 8.0

CVSS Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE N/A

Public Exploit ✅ No

Source OSV

Published 2026-04-10

Updated 2026-08-20

Modified 2026-07-28

Fix URL N/A

Affected Packages

Software	From version	Fixed in
rootio-openexr	—	3.1.5-5.root.io.20

References

N/A

🔗 NVD 🔗 Mitre

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