GHSA-5QWM-7PVP-W988 OpenMcdf: Uncatchable infinite loop in DirectoryTree.TryGetDirectoryEntry on crafted CFB directory cycle

Summary The BST name-lookup loop in DirectoryTree.TryGetDirectoryEntry OpenMcdf/DirectoryTree.cs:35-46 walks directory entries by repeatedly calling directories.TryGetSiblingchild, siblingType, validateColor. A crafted CFB file with cyclic Left/Right sibling links among directory entries -...

CVE-2026-28386

Issue summary: Applications using AES-CFB128 encryption or decryption on systems with AVX-512 and VAES support can trigger an out-of-bounds read of up to 15 bytes when processing partial cipher blocks. Impact summary: This out-of-bounds read may trigger a crash which leads to Denial of Service fo...

CVE-2026-28386 Out-of-bounds Read in AES-CFB-128 on X86-64 with AVX-512 Support

Issue summary: Applications using AES-CFB128 encryption or decryption on systems with AVX-512 and VAES support can trigger an out-of-bounds read of up to 15 bytes when processing partial cipher blocks. Impact summary: This out-of-bounds read may trigger a crash which leads to Denial of Service fo...

CVE-2026-28386

The CVE CVE-2026-28386 affects OpenSSL’s FIPS module (version 3.6) on x86-64 systems with AVX-512 and VAES. A partial-block processing path in AES-CFB-128 can trigger an out-of-bounds read of up to 15 bytes when the input buffer sits at a page boundary and the next page is unmapped, potentially c...

CVE-2026-28386 Out-of-bounds Read in AES-CFB-128 on X86-64 with AVX-512 Support

Issue summary: Applications using AES-CFB128 encryption or decryption on systems with AVX-512 and VAES support can trigger an out-of-bounds read of up to 15 bytes when processing partial cipher blocks. Impact summary: This out-of-bounds read may trigger a crash which leads to Denial of Service fo...

CVE-2026-28386

Issue summary: Applications using AES-CFB128 encryption or decryption on systems with AVX-512 and VAES support can trigger an out-of-bounds read of up to 15 bytes when processing partial cipher blocks. Impact summary: This out-of-bounds read may trigger a crash which leads to Denial of Service fo...

CVE-2025-56801

The Reolink Desktop Application 8.18.12 contains hardcoded credentials as the Initialization Vector IV in its AES-CFB encryption implementation allowing attackers with access to the application environment to reliably decrypt encrypted configuration data. NOTE: the Supplier's position is that...

CVE-2025-56801

The Reolink Desktop Application 8.18.12 contains hardcoded credentials as the Initialization Vector IV in its AES-CFB encryption implementation allowing attackers with access to the application environment to reliably decrypt encrypted configuration data. NOTE: the Supplier's position is that...

CVE-2025-56801

The Reolink Desktop Application 8.18.12 contains hardcoded credentials as the Initialization Vector IV in its AES-CFB encryption implementation allowing attackers with access to the application environment to reliably decrypt encrypted configuration data. NOTE: the Supplier's position is that...

EUVD-2010-3077

Malware in sbrugna...

EUVD-2012-0007

Malware in sbrugna...

The evolution of the Kuiper ransomware

Kuiper Ransomware’s Evolution By Trellix · January 17, 2024 This blog was written by Max Kersten The Golang-based Kuiper ransomware is presented as an opportunity for other criminals to make money by ransoming one or more targets. Additionally, RobinHood, the actor behind Kuiper, states that help...

The evolution of the Kuiper ransomware

Kuiper Ransomware’s Evolution By Max Kersten · January 17, 2024 The Golang-based Kuiper ransomware is presented as an opportunity for other criminals to make money by ransoming one or more targets. Additionally, RobinHood, the actor behind Kuiper, states that help with operations can be provided...

Elixir can leak information due to weak use of crypto

Elixir prior to and including 0.7.1 uses Blowfish in CFB mode without constructing a unique initialization vector IV, which makes it easier for context-dependent users to obtain sensitive information and decrypt the database. A patch has been attached to the initial advisory to mitigate this...

LIVE Webinar on Zerologon Vulnerability: Technical Analysis and Detection

I am sure that many of you have by now heard of a recently disclosed critical Windows server vulnerability—called Zerologon—that could let hackers completely take over enterprise networks. For those unaware, in brief, all supported versions of the Windows Server operating systems are vulnerable t...

CVE-2017-17688

DISPUTED The OpenPGP specification allows a Cipher Feedback Mode CFB malleability-gadget attack that can indirectly lead to plaintext exfiltration, aka EFAIL. NOTE: third parties report that this is a problem in applications that mishandle the Modification Detection Code MDC feature or accept an...

Nextcloud: Improper confidentiality protection of server-side encryption keys

This vulnerability is related to the Improper integrity protection of server-side encryption keys vulnerability but leverages a different attack vector. While the previous attack broke the confidentiality of encrypted files because the public keys are not integrity-protected, this new attack brea...

Nextcloud: Downgrade encryption scheme and break integrity through known-plaintext attack

The idea behind the Server Side Encryption is that you can move your encrypted files to an external party without that external party being able to to read or modify those files. Some time ago, Nextcloud switched from unauthenticated CFB cipher block mode to authenticated CTR cipher block mode in...

VSHG - Hardware resistance & enhanced security for GnuPG

VSHG aims to provide a memory / hardware resistant reinforcement to GnuPG's standared s2k key-derivation-function + a simplified interface for symmetric encryption . About VSHG VSHG Very secure hash generator is a standalone Addon for GnuPG Gnu privacy guard . It is written as a shell script and ...

Hardware resistance & enhanced security for GnuPG

VSHG aims to provide a memory / hardware resistant reinforcement to GnuPG’s standard s2k key-derivation-function + a simplified interface for symmetric encryption . VSHG Very secure hash generator is a standalone Addon for GnuPG Gnu privacy guard . It is written as a shell script and is designed...