🛡️ CVE-2025-12840 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-2025-12840 in rootio-openexr - Patched by Root

Root has patched CVE-2025-12840 in the rootio-openexr package for Root:Debian:12. Multiple fixed versions available.

Distribution advisory

This page covers CVE-2025-12840 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-2025-12840 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-2025-12840 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-2025-12840 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

Similar Threats

Site Security Check

Is rootio-openexr part of your stack?

ROOT-OS-DEBIAN-12-CVE-2025-12840 is rated CVSS 8.0 High. BotEraser scans your installation against known CVE records and tells you whether this vulnerability applies to the versions you actually run.

Scan My Site Free →

No credit card required · Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.