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ISC Stormcast For Wednesday, May 13th, 2026 https://isc.sans.edu/podcastdetail/9930, (Wed, May 13th)
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
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Proxying the Unproxyable? Sending EXE traffic to a Proxy, (Wed, May 13th)
.. if “unproxyable” is a word that is .. I had a recent engagement where I had to look at the network traffic generated by a Windows executable. Unfortunately, it was all TLS, and all TLS1.3 to boot. So from a PCAP all I got was a whole lot of “yup, that’s encrypted”, and since…
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Microsoft May 2026 Patch Tuesday, (Tue, May 12th)
Today’s Microsoft patch Tuesday fixes 137 different vulnerabilities. In addition, the update addresses 137 Chromium-related issues affecting Microsoft Edge. There are no already disclosed or already exploited vulnerabilities included in today’s patches. I removed the Chromium issues from the table below and included only the 137 Microsoft issues to make it more readable. Note that issues…
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ISC Stormcast For Tuesday, May 12th, 2026 https://isc.sans.edu/podcastdetail/9928, (Tue, May 12th)
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
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Apple Patches Everything, (Mon, May 11th)
Apple today released its typical feature update across it’s operating systems (iOS, iPadOS, macOS, tvOS, watchOS, vision OS). With this update, Apple patched 84 different vulnerabilities. Updates are available for the “26” series of operating systems, as well as for the previous “18” version of iOS/iPadOS, and two versions back for macOS (version 14 and…
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Why we use CAPTCHAs, (Mon, May 11th)
A few months ago, I implemented Cloudflare’s Turnstile CAPTCHA on some pages. The reason for implementing these CAPTCHAs is obvious: Bots make up a large percentage of traffic and affect site performance. So I figured it was a good time to look back and see how effective these CAPTCHA are. The quick number: Out of…
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ISC Stormcast For Monday, May 11th, 2026 https://isc.sans.edu/podcastdetail/9926, (Mon, May 11th)
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
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YARA-X 1.16.0 Release, (Sun, May 10th)
YARA-X’s 1.16.0 release brings 4 improvements and 4 bugfixes. Didier Stevens Senior handler blog.DidierStevens.com (c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
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Another Universal Linux Local Privilege Escalation (LPE) Vulnerability: Dirty Frag, (Fri, May 8th)
Less than two weeks after the public disclosure of the Copy Fail vulnerability (CVE-2026-31431), another local privilege escalation (LPE) vulnerability in the Linux kernel has been revealed. Referred to as “Dirty Frag,” this vulnerability was discovered and reported by Hyunwoo Kim (@v4bel) [1]. In this diary, I will provide a brief background on Dirty Frag,…
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ISC Stormcast For Friday, May 8th, 2026 https://isc.sans.edu/podcastdetail/9924, (Fri, May 8th)
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
