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Adobe is urging its throngs of Acrobat Reader users to update their software to fix critical vulnerabilities that could allow adversaries to execute arbitrary code on unpatched versions. The warnings are part of the firm’s September monthly security update, which this month addresses 59 bugs found in 15 of its products, including in Photoshop, Premiere Elements, ColdFusion and InCopy. In all, 36 of the vulnerabilities are rated “critical,” which is an Adobe-specific label indicating that the flaws, if exploited, “would allow malicious native-code to execute, potentially without a user being aware.” As for the Adobe Acrobat family of software, 26 bugs were patched, 13 of which were critical and given an Adobe priority rating of “2,” meaning that the affected product is at “elevated risk” of being attacked. Other high-rated bugs include a bevy of code execution vulnerabilities triggered via a type confusion, heap-based buffer overflow or a use-after-free style of attack. “[One] single bug fixed by [a] Photoshop patch could … lead to code execution when opening a specially crafted file,” commented Zero-Day Initiative in a Tuesday post. “If you’re still using ColdFusion, you’ll definitely want to patch the two critical rated security feature bypass bugs being fixed today,” ZDI continued. Of those Adobe bugs rated the highest in severity – when it comes to MITRE’s Common Vulnerability Scoring System (CVSS) – standouts include a Framemaker bug (CVE-2021-39830) rated 8.8. Another…

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