Adobe FrameMaker Hit by High-Severity Integer Underflow

Adobe FrameMaker Hit by High-Severity Integer Underflow

The National Vulnerability Database (NVD) has flagged a significant vulnerability, CVE-2026-27296, affecting Adobe FrameMaker versions 2022.8 and earlier. This isn’t some run-of-the-mill bug; we’re talking about an Integer Underflow (wrap or wraparound) that, if exploited, could lead to arbitrary code execution. That’s right, an attacker could potentially run their own code on a victim’s machine, effectively taking control within the context of the current user.

Rated with a CVSS v3.1 score of 7.8 (HIGH), this vulnerability demands attention. According to the NVD, exploiting this flaw isn’t entirely silent; it requires user interaction. Specifically, a victim needs to open a specially crafted, malicious file. This often means a phishing lure or a seemingly innocuous document designed to trigger the exploit. The underlying issue is classified under CWE-191, a common but dangerous weakness where an arithmetic operation results in a value smaller than the minimum representable value, leading to unpredictable behavior and, in this case, potentially arbitrary code execution.

Related ATT&CK Techniques

🛡️ Detection Rules

2 rules · 5 SIEM formats

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medium T1204.002 Execution

Suspicious File Download via Email

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Indicators of Compromise

IDTypeIndicator
CVE-2026-27296 RCE Adobe Framemaker versions 2022.8 and earlier
CVE-2026-27296 Integer Underflow Arbitrary Code Execution via malicious file

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