Analyzing CVE-2025-31191: A macOS security-scoped bookmarks-based sandbox escape


In April 2024, Microsoft uncovered a vulnerability in macOS that could allow specially crafted codes to escape the App Sandbox and run unrestricted on the system.

An attacker could create an exploit to escape the App Sandbox without user interaction required for any sandboxed app using security-scoped bookmarks. With the ability to run code unrestricted on the affected device, attackers could perform further malicious actions like elevating privileges, exfiltrating data, and deploying additional payloads. Microsoft’s Threat Intelligence research demonstrates that these exploits would need to be complex, and require Office macros to be enabled, in order to successfully target the Microsoft Office app. Similar to our discovery of another sandbox escape vulnerability in 2022, Microsoft researchers uncovered this issue while researching potential methods to run and detect malicious macros in Microsoft Office on macOS.

Read more…
Source: Microsoft


Sign up for our Newsletter
The latest news and insights delivered right to your inbox.


Related:

  • CISA orders feds to patch Oracle Identity Manager zero-day after signs of abuse

    November 24, 2025

    CISA has ordered US federal agencies to patch against an actively exploited Oracle Identity Manager (OIM) flaw within three weeks – a scramble made more urgent by evidence that attackers may have been abusing the bug months before a fix was released. The flaw, tracked as CVE-2025-61757 and now sitting in CISA’s Known Exploited Vulnerabilities catalog, ...

  • WhatsApp security flaw lets experts scrape 3.5 billion user numbers

    November 21, 2025

    WhatsApp users may need to take extra steps to protect their account information following a potentially concerning discovery. A study by researchers at the University of Vienna revealed the app’s contact-discovery system enabled the collection of extensive WhatsApp user data at an unprecedented scale due to insufficient rate-limiting across global endpoints. The researchers were able to ...

  • Google says hackers stole data from 200 companies following Gainsight breach

    November 21, 2025

    Google has confirmed that hackers have stolen the Salesforce-stored data of more than 200 companies in a large-scale supply chain hack. On Thursday, Salesforce disclosed a breach of “certain customers’ Salesforce data” — without naming affected companies — that was stolen via apps published by Gainsight, which provides a customer support platform to other companies. Read more… Source: ...

  • European Union Agency for Cybersecurity (ENISA) becomes a Common Vulnerabilities and Exposures (CVE) Program-Root

    November 20, 2025

    As a Common Vulnerability and Exposure (CVE) Numbering Authority (CNA), ENISA is authorised to assign CVE Identifiers (CVE IDs) and to publish CVE Records for vulnerabilities discovered by or reported to EU CSIRTs, in line with their dedicated coordinator roles since January 2024. As Root CNA, ENISA is now expanding its role within the CVE ...

  • Tens of thousands more ASUS routers pwned by suspected, evolving China operation

    November 19, 2025

    Around 50,000 ASUS routers have been compromised in a sophisticated attack that researchers believe may be linked to China, according to findings released today by SecurityScorecard’s STRIKE team. Dubbed “Operation WrtHug”, the campaign exclusively targets end-of-life ASUS WRT routers, exploiting multiple known vulnerabilities – some dating back to 2023. The affected routers are primarily concentrated in ...

  • Active Exploitation Reported for CVE-2025-11001 in 7-Zip

    November 18, 2025

    Active exploitation of CVE-2025-11001 has been observed in the wild. A security researcher has also publicly released a proof-of-concept (PoC) exploit for CVE-2025-11001. The PoC allows attackers to abuse symbolic-link handling to write files outside of the intended extraction folder, which in some scenarios, can enable arbitrary code execution. Read more… Source: NHS Digital Sign up for the Cyber ...