Apple fixes critical font processing bug – update now


Apple has released important security updates to address a critical vulnerability in FontParser—the part of MacOS/iOS/iPadOS that processes fonts.

Identified as CVE-2025-43400, the flaw was discovered internally by Apple and allows an attacker to craft a malicious font that can cause apps to crash or corrupt process memory, potentially leading to arbitrary code execution. While Apple hasn’t said it’s being actively exploited, similar bugs have been used in jailbreaks and spyware attacks in the past, so it’s smart to patch it promptly.

Read more…
Source: Malwarebytes Labs


Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox


Related:

  • New wave of attacks use ProxyNotShell/OWASSRF vulnerabilities to target Microsoft Exchange

    January 24, 2023

    Researchers at S.C. Bitdefender SRL today warned of a new wave of attacks using known vulnerabilities to target Microsoft Exchange. The researchers started to notice an increase in attacks using ProxyNotShell/OWASSRF exploits to target on-premises Microsoft Exchange deployments at the end of November. The Server-Side Request Forgery attacks allow an attacker to send a crafted request ...

  • Apple fixes actively exploited iOS zero-day on older iPhones, iPads

    January 23, 2023

    Apple has backported security patches addressing a remotely exploitable zero-day vulnerability to older iPhones and iPads. This bug is tracked as CVE-2022-42856, and it stems from a type confusion weakness in Apple’s Webkit web browser browsing engine. Read more… Source: Bleeping Computer  

  • CISA Adds One Known Exploited Vulnerability to Catalog

    January 23, 2023

    CISA has added one new vulnerability to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. This type of vulnerability is a frequent attack vector for malicious cyber actors and poses a significant risk to the federal enterprise. Note: To view the newly added vulnerabilities in the catalog, click on the arrow in the ...

  • Exploiting null-dereferences in the Linux kernel

    January 19, 2023

    For a fair amount of time, null-deref bugs were a highly exploitable kernel bug class. Back when the kernel was able to access userland memory without restriction, and userland programs were still able to map the zero page, there were many easy techniques for exploiting null-deref bugs. However with the introduction of modern exploit mitigations such ...

  • Suspected Chinese Threat Actors Exploiting FortiOS Vulnerability (CVE-2022-42475)

    January 19, 2023

    Mandiant is tracking a suspected China-nexus campaign believed to have exploited a recently announced vulnerability in Fortinet’s FortiOS SSL-VPN, CVE-2022-42475, as a zero-day. Evidence suggests the exploitation was occurring as early as October 2022 and identified targets include a European government entity and a managed service provider located in Africa. Mandiant identified a new malware they ...

  • Thousands of Sophos firewalls still vulnerable out there to hijacking

    January 18, 2023

    More than 4,000 public-facing Sophos firewalls remain vulnerable to a critical remote code execution bug disclosed last year and patched months later, according to security researchers. The flaw, CVE-2022-3236, had already been exploited as a zero-day when Sophos published a security advisory about the vulnerability in September 2022. At the time, the vendor said the hole ...