Cyber Resilience

CVE-2026-12912

High

Published: 29 June 2026

Published
29 June 2026
Modified
30 June 2026
KEV Added
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Patch
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CVSS Score v3.1 7.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
EPSS Score N/A
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-12912 is a high-severity Heap-based Buffer Overflow (CWE-122) vulnerability in Redhat (inferred from references). Its CVSS base score is 7.3 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

A flaw was found in libtiff. A remote attacker could exploit this vulnerability by providing a specially crafted PixarLog-compressed TIFF image. This issue occurs when decoding Pixarlog codec images with the PIXARLOGDATAFMT_8BITABGR output format and a specific stride value, leading…

more

to a heap-based buffer overflow. This could potentially result in arbitrary code execution or a denial of service (DoS).

CWE(s)
CWE-122

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1204.002 Malicious File Execution
An adversary may rely upon a user opening a malicious file in order to gain execution.
attack.mitre.org →
Why these techniques?

Heap buffer overflow in libtiff image decoder enables RCE via crafted TIFF file, directly facilitating T1190 (public app exploitation) and T1204.002 (malicious file).

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

Affected Assets

Redhat
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inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References